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MCQOPTIONS
This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Kanika noticed that her potted plant was not growing healthily. She put few earthworms into the pot. After a few weeks, she noticed that her plants looked healthier. What could be the possible reason for this? |
| A. | The earthworms ate up the pests in the soil. |
| B. | The earthworms helped the plant to take in water. |
| C. | The earthworms allowed the plant to make food faster. |
| D. | The earthworms increased the air and nutrient content of the soil. |
| Answer» E. | |
| 252. |
Refer to the diagrammatic representation of water cycle and identify P, Q, R and S. |
| A. | P - Condensation; Q - Precipitation; R - Transpiration; S - Evaporation |
| B. | P - Precipitation; Q - Condensation; R - Transpiration; S - Evaporation |
| C. | P - Precipitation; Q - Condensation; R - Evaporation; S - Transpiration |
| D. | P - Precipitation; Q - Evaporation; R - Condensation; S - Transpiration |
| Answer» C. P - Precipitation; Q - Condensation; R - Evaporation; S - Transpiration | |
| 253. |
Refer to the given flow chart and identity X, Y and Z. |
| A. | XYZ\[{{O}_{2}}\]\[C{{O}_{2}}\]\[He\] |
| B. | XYZ\[C{{O}_{2}}\]\[{{O}_{2}}\]\[{{N}_{2}}\] |
| C. | XYZ\[{{N}_{2}}\]\[C{{O}_{2}}\]\[{{O}_{2}}\] |
| D. | XYZ\[{{O}_{2}}\]\[He\]\[C{{O}_{2}}\] |
| Answer» B. XYZ\[C{{O}_{2}}\]\[{{O}_{2}}\]\[{{N}_{2}}\] | |
| 254. |
The gas X is only about 20 parts out of 10 parts of air in the atmosphere. It is needed for decomposition of organic matter. The gas X is |
| A. | Carbon dioxide |
| B. | Water vapor |
| C. | Oxygen |
| D. | Nitrogen. |
| Answer» D. Nitrogen. | |
| 255. |
Study the following experiment. What could be inferred from the above experiment? |
| A. | Air contains dust particles. |
| B. | Air does not have fixed volume. |
| C. | Air has mass. |
| D. | Air is colorless. |
| Answer» D. Air is colorless. | |
| 256. |
Read the following statements. (i) Air dissolved in water cannot be removed from it. (ii) Density of air decreases with increasing altitude. (iii) Air is an element that surrounds the Earth and makes it hospitable for living organisms. (iv) Air helps in pollination of several flowers and in the dispersal of seeds. Which of the above statements are correct? |
| A. | (i) and (ii) only |
| B. | (ii) and (iv) only |
| C. | (i) and (iii) only |
| D. | (iii) and (iv) only |
| Answer» C. (i) and (iii) only | |
| 257. |
Manisha took some vinegar in a test tube and added some baking powder to it. Then she lit a matchstick and brought it near the mouth of the test tube. The flame of matchstick got extinguished.Which of the following is correct conclusion regarding the given experiment? |
| A. | Carbon dioxide gas does not support burning. |
| B. | Air contains carbon dioxide. |
| C. | Oxygen gas present in the air is necessary for burning. |
| D. | Oxygen gas can extinguish fire. |
| Answer» B. Air contains carbon dioxide. | |
| 258. |
Where does condensation occur in the water cycle? |
| A. | when cloud is forming |
| B. | when ocean water changes into water vapour |
| C. | when water flowing down a river |
| D. | when underground water soaking into rocks and soil |
| Answer» B. when ocean water changes into water vapour | |
| 259. |
The reverse process of evaporation is |
| A. | condensation |
| B. | sublimation |
| C. | freezing |
| D. | precipitation |
| Answer» B. sublimation | |
| 260. |
The state of water depends on |
| A. | the shape or size of the container |
| B. | where it has been stored |
| C. | if it is being used for irrigation |
| D. | temperature |
| Answer» E. | |
| 261. |
A diagram of the water cycle is shown below. The letters A through E represent five different processes taking place. Which of the following is correct? |
| A. | A-Precipitation, B-Run off, C-Conden- sation, D-Ground water, E-Evaporation |
| B. | A-Evaporation, B-Ground water, C-Run off, D-Condensation, E-Precipitation. |
| C. | A-Run off B-Precipitation, C-Evaporation, D-Ground water, E-Condensation |
| D. | A-Condensation, B-Precipitation, C-Run off, D-Ground water, E-Evaporation |
| Answer» E. | |
| 262. |
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: Lightning connects to the ground from the clouds. Statement-2: Electricity follows the longest route. Statement-3: Lightning conductor was inverted by Issac Newton. |
| A. | Statement (i) and (iii) are incorrect while statement (ii) is correct. |
| B. | Statement (i) and (ii) are incorrect while (iii) is correct. |
| C. | All the statements are correct. |
| D. | All the statements are incorrect. |
| Answer» C. All the statements are correct. | |
| 263. |
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: Lightning always create thunder. Statement-2: Thunder is uncommon but not rare Statement-3: More thunder means more lightning. |
| A. | Statement (i) and (iii) are incorrect while statement (ii) is correct. |
| B. | Statement (i) and (ii) are incorrect while (iii) is correct. |
| C. | All the statements are correct. |
| D. | All the statements are incorrect. |
| Answer» B. Statement (i) and (ii) are incorrect while (iii) is correct. | |
| 264. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R ". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Lightning conductors are used to protect buildings from lightning. Reason R: Direct lightning strike is useful. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» D. A is false but R is true. | |
| 265. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R ". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Heavy rain can cause flooding. Reason R: Rainfall directly depends on temperature. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» D. A is false but R is true. | |
| 266. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R ". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Astrophobia is the fear of thunder and lightning. Reason R: Thunder is the sound caused by lightning. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» C. A is true but R is false. | |
| 267. |
Which type of rainfall would be most helpful to farmers? |
| A. | rainfall that evaporates quickly |
| B. | rainfall that runs off the land quickly |
| C. | rainfall that soaks into the soil slowly |
| D. | very little rainfall |
| Answer» D. very little rainfall | |
| 268. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 3 The diagram shows a person observing a thunderstorm located several kilo meters away. The person hears the thunder several seconds after seeing the lightning. Which form of energy, other than light and sound is often present during a thunderstorm? |
| A. | Electric |
| B. | Magnetic |
| C. | Geothennal |
| D. | Nuclear |
| Answer» B. Magnetic | |
| 269. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 2 A lightning conductor is a metal (usually copper) rod connecting the highest point on a building to the earth. Its purpose is to protect the building from a damaging discharge of electricity between the atmosphere and the building, that is, lightning strike. This device is invented by Benjamin Fanklin in 1750. Lightning conductor is invented by |
| A. | Benjamin Franklin |
| B. | Albert Einstein |
| C. | Issac Newton |
| D. | Franklin D. Roosevelt |
| Answer» B. Albert Einstein | |
| 270. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 2 A lightning conductor is a metal (usually copper) rod connecting the highest point on a building to the earth. Its purpose is to protect the building from a damaging discharge of electricity between the atmosphere and the building, that is, lightning strike. This device is invented by Benjamin Fanklin in 1750. Lightning conductor is used |
| A. | to protect buildings from rain |
| B. | to protect buildings from effects of lightning |
| C. | to protect buildings from thunder. |
| D. | all of these |
| Answer» C. to protect buildings from thunder. | |
| 271. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 2 A lightning conductor is a metal (usually copper) rod connecting the highest point on a building to the earth. Its purpose is to protect the building from a damaging discharge of electricity between the atmosphere and the building, that is, lightning strike. This device is invented by Benjamin Fanklin in 1750. Lightning conductor is made of |
| A. | metal |
| B. | plastic |
| C. | insulator |
| D. | wood |
| Answer» B. plastic | |
| 272. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 1 Use the model of the water cycle to answer the following questions. Where is precipitation occurring? |
| A. | from A to B |
| B. | from B to C |
| C. | from C to D |
| D. | from D to A |
| Answer» B. from B to C | |
| 273. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 1 Use the model of the water cycle to answer the following questions. Where is water condensing? |
| A. | from A to B |
| B. | from B to C |
| C. | from C to D |
| D. | from D to A |
| Answer» E. | |
| 274. |
DIRECTIONS: Read the passage (s) given below and answer the questions that of follow. Passage - 1 Use the model of the water cycle to answer the following questions. Water is evaporating into the air |
| A. | from A to B |
| B. | from B to C |
| C. | from C to D |
| D. | from D to A |
| Answer» D. from D to A | |
| 275. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column - I Column - II A. Water cycle (p) falls in very cold regions B. Clouds (q) made of metals. C. Snow or hail (r) Natural circuit of water in its different states D. Lightning conductor (s)condensed form of water vapour |
| A. | \[A\to (r);B\to (s);C\to (p);D\to (q)\] |
| B. | \[A\to (s);B\to (r);C\to (q);D\to (p)\] |
| C. | \[A\to (r);B\to (s);C\to (q);D\to (p)\] |
| D. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| Answer» B. \[A\to (s);B\to (r);C\to (q);D\to (p)\] | |
| 276. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column-I Column-II A. Upper edge of clouds (p) hail B. Lower edge of clouds (q) water vapour C. Gaseous state of water (r) having excess of positive charges D. Falling of ice crystals on earth (s) having excess of negative charges |
| A. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| B. | \[A\to (r);B\to (s);C\to (q);D\to (p)\] |
| C. | \[A\to (r);B\to (p);C\to (q);D\to (q)\] |
| D. | \[A\to (r);B\to (q);C\to (s);D\to (p)\] |
| Answer» C. \[A\to (r);B\to (p);C\to (q);D\to (q)\] | |
| 277. |
What does heat from the sun cause liquid water to do? |
| A. | evaporate into the air |
| B. | travel deeper into the soil |
| C. | change into a solid |
| D. | fall from clouds as rain |
| Answer» B. travel deeper into the soil | |
| 278. |
Where does the energy that powers the water cycle comes from? |
| A. | plants |
| B. | electric shocks |
| C. | animals |
| D. | the sun |
| Answer» E. | |
| 279. |
The water cycle is the Earth's way of |
| A. | getting rid of water |
| B. | recycling water |
| C. | using up all of our water |
| D. | cleaning our water |
| Answer» C. using up all of our water | |
| 280. |
Lightning can never strike the same place twice. |
| A. | it is true |
| B. | it is false |
| C. | maybe |
| D. | may not be |
| Answer» C. maybe | |
| 281. |
Instrument, which is used to detect and monitor rain is |
| A. | Reengage |
| B. | Weather radar |
| C. | pH meter |
| D. | Hydrometer |
| Answer» C. pH meter | |
| 282. |
Hot water vapour is called |
| A. | steam |
| B. | snow |
| C. | hail |
| D. | rain |
| Answer» B. snow | |
| 283. |
By boiling process water converts into |
| A. | water vapour |
| B. | snow |
| C. | hail |
| D. | cloud |
| Answer» B. snow | |
| 284. |
Forests that experience high levels of rainfall are called |
| A. | rain forests |
| B. | snow forests |
| C. | rain guages |
| D. | flood forests |
| Answer» B. snow forests | |
| 285. |
Liquid water changes to water vapour by the process of |
| A. | evaporation |
| B. | condensation |
| C. | precipitation |
| D. | freezing |
| Answer» B. condensation | |
| 286. |
What is the sound of thunder caused by a nearby main trunk airwave? |
| A. | sharp crakle |
| B. | low rumble |
| C. | loud crash |
| D. | feeble crash |
| Answer» D. feeble crash | |
| 287. |
Why do we always see a lightning before we hear thunder? |
| A. | because lightning occurs first. |
| B. | because light travels faster than sound. |
| C. | because thunder occurs late. |
| D. | because sound travels fester than light. |
| Answer» C. because thunder occurs late. | |
| 288. |
Cloud forms through the process of |
| A. | condensation |
| B. | precipitation |
| C. | freezing |
| D. | transpiration |
| Answer» B. precipitation | |
| 289. |
Which of the following is incorrect? m an event of lightning, we should |
| A. | not hold any metallic pipes |
| B. | stand under a tree if in a plain area |
| C. | remove all metallic objects from our pockets if in a plain area. |
| D. | disconnect all electrical appliances connected to external antenna. |
| Answer» C. remove all metallic objects from our pockets if in a plain area. | |
| 290. |
Name the scientists who showed that lightning and the spark from your clothes are essentially the same phenomena? |
| A. | Thomas Alva Edison |
| B. | Franklin D. Roosevelt |
| C. | Benjamin Franklin |
| D. | Issac Newton |
| Answer» D. Issac Newton | |
| 291. |
During lightning which of the following is a safe place? |
| A. | open field |
| B. | inside a house |
| C. | bus stop |
| D. | elevated ridge |
| Answer» C. bus stop | |
| 292. |
DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement-1: Water vapour is gaseous state of water. Statement-2: Water vapour in the clouds cools down and it becomes water again. |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct |
| D. | Both statements are incorrect. |
| Answer» D. Both statements are incorrect. | |
| 293. |
DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement-1: Water is the only thing that can be a gas, liquid and a solid. Statement-2: About one-third of our body is made up of water. |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct |
| D. | Both statements are incorrect. |
| Answer» D. Both statements are incorrect. | |
| 294. |
The source of energy which evaporates the most water from Earth's surface is |
| A. | volcanoes |
| B. | lightning |
| C. | the sun |
| D. | wind |
| Answer» D. wind | |
| 295. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: Clouds contain millions of tons of water. Reason: A cloud is a large group of tiny water droplets that we can see in the air. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 296. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: Lightning is a big charge of electricity. Reason: The electricity moves from the negative terminal to the positive terminal. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» C. A is true but R is false. | |
| 297. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Rain is liquid water in the form of droplets that have condensed from atmospheric water vapour and then precipitated that is, become heavy enough to fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. In very cold region, rain drops fall on earth as |
| A. | hail |
| B. | rain |
| C. | drops |
| D. | all of these |
| Answer» B. rain | |
| 298. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Rain is liquid water in the form of droplets that have condensed from atmospheric water vapour and then precipitated that is, become heavy enough to fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. Rain is a major component of |
| A. | evaporation |
| B. | condensation |
| C. | precipitation |
| D. | water cycle |
| Answer» E. | |
| 299. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Rain is liquid water in the form of droplets that have condensed from atmospheric water vapour and then precipitated that is, become heavy enough to fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. Rain is 1. form of water droplets that have condensed from water vapour 2. form of precipitation. |
| A. | only (1) |
| B. | only (2) |
| C. | both (1) and (2) |
| D. | neither (1) nor (2) |
| Answer» D. neither (1) nor (2) | |
| 300. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Lightning is the visible discharge of electricity that occurs when a region of a cloud acquires an excess electrical charge either positive or negative, that is sufficient to break down the resistance of air. When lightning is likely to occur people are advised to stay indoors, away from open doors and avoid contact with any electrical appliances. Lightning is a visible discharge of electricity. having sufficient power to break down the resistance of air. usually occurred during thunderstorm. |
| A. | only |
| B. | and (2) |
| C. | (1), (2) and (3) |
| D. | (2) and (3) |
| Answer» D. (2) and (3) | |