Explore topic-wise MCQs in 7th Class.

This section includes 2637 Mcqs, each offering curated multiple-choice questions to sharpen your 7th Class knowledge and support exam preparation. Choose a topic below to get started.

2601.

Direction : Refer to the given figure of water cycle and answer the following questions.Which of the following represents the process involved in the formation of dew?

A. -2
B. -3
C. -4
D. -6
Answer» C. -4
2602.

Read the given statements and select the correct option, Statement 1: Forests prevent soil erosion. Statement 2: Canopy formed by crown of leaves of forest trees reduces the force and speed of raindrops.

A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C. Statement 1 is true but statement 2 is false.
D. Both statements 1 and 2 are false.
Answer» B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
2603.

Refer to the given flow chart showing flow of energy in a food chain.Select the correct statement regarding P, Q, R and S.(i) S helps in cleaning of environment as well as recycling of nutrients.(ii) The role of Q comes when plants and animals die.(iii) P operate at all levels of food chain.(iv) R eats other animals and get its food indirectly from P.

A. (i) and (iv) only
B. (i), (iii) and (iv) only
C. (iii) and (iv) only
D. (i), (ii), (iii) and (iv)
Answer» B. (i), (iii) and (iv) only
2604.

The given pie charts show the composition of three types of soil samples X, Y and Z. Which of the following is correct regarding these?

A. X is unable to hold water or nutrients.
B. Y is used for pot making.
C. Z provides good amount of oxygen to roots for breathing.
D. X is best suited for cultivation.
Answer» E.
2605.

Refer to the given flow chart and identify (i), (ii), (iii) and (iv).

A. (i)(ii)(iii)(iv)Ground waterForestMetalFossil fuel
B. (i)(ii)(iii)(iv)WaterForestMetalFossil fuel
C. (i)(ii)(iii)(iv)WaterFossil fuelPlasticForest
D. (i)(ii)(iii)(iv)Ground waterFossil fuelMetalForest
Answer» C. (i)(ii)(iii)(iv)WaterFossil fuelPlasticForest
2606.

Direction : Read the given data and select the correct option for the following questions.Raman carried out an experiment to find out how fast water can pass through four different types of soil. He put each type of soil in four pots with equal sized holes at the base and placed separate dishes at their bottom to collect water. He poured water in them one by one, and used a stopwatch to record the time taken for water to reach the level he had marked same in each dish. His recording is given in the table as shown below.Type of soilWXYZTime (in seconds)403562120What factors should Raman keep the same to ensure a fair test?(i) The amount of soil(ii) The size of the pot(iii) The shape of the dish(iv) The amount of water

A. (iii) and (iv) only
B. (i) and (ii) only
C. (ii), (iii) and (iv) only
D. (i), (ii), (iii) and (iv)
Answer» C. (ii), (iii) and (iv) only
2607.

Direction : Read the given data and select the correct option for the following questions.Raman carried out an experiment to find out how fast water can pass through four different types of soil. He put each type of soil in four pots with equal sized holes at the base and placed separate dishes at their bottom to collect water. He poured water in them one by one, and used a stopwatch to record the time taken for water to reach the level he had marked same in each dish. His recording is given in the table as shown below.Type of soilWXYZTime (in seconds)403562120Which soil is the most suitable for a plant that thrives in wet and clayey soil?

A. W
B. X
C. Y
D. Z
Answer» E.
2608.

Sam: Plant transport system is made up of only dead cells. John: Root hairs absorb the water from the soil particles and reach them into xylem vessels. Who of the above is correct?

A. Sam
B. John
C. Both of them
D. All of these
Answer» C. Both of them
2609.

Although all the veins carry deoxygenated blood, however pulmonary vein carries oxygenated blood. Pulmonary vein brings the oxygenated blood into the heart from where this blood is sent throughout the body through the arteries. From where does the pulmonary vein bring oxygenated blood?

A. Heart
B. Liver
C. Lung
D. Kidney
Answer» D. Kidney
2610.

If you can't quite see all your face in a pocket mirror, to do so you'll need to

A. hold it closer
B. hold it farther away
C. get a bigger mirror
D. none of these
Answer» C. get a bigger mirror
2611.

If the angle between the incident ray and the normal to the plane of the mirror is \[40{}^\circ ,\] the angle between the incident ray and the reflected ray will be

A. \[40{}^\circ \]
B. \[90{}^\circ \]
C. \[80{}^\circ \]
D. \[60{}^\circ \]
Answer» D. \[60{}^\circ \]
2612.

A beam of light is said to be divergent when:

A. all the rays travel parallel to each other
B. all the rays spread from a point source of light
C. all the rays converge together to a single point
D. it travels in an irregular pattern
Answer» C. all the rays converge together to a single point
2613.

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 One way to change the path of light is to allow it to fall I on a shiny surface. A mirror can change the path of light that falls on it. The change of direction by a mirror is called reflection of light. An image formed by a plane mirror is

A. erect
B. of the same size as object
C. both (a) and (b)
D. none of these
Answer» D. none of these
2614.

DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Take a stainless steel spoon. Bring the outer surface of the spoon near your face and look into it. Observe your image. Now observe your image using the inner side of the spoon. When the object is placed very close to the concave mirror, the image formed is

A. virtual
B. upside down
C. smaller
D. all of these
Answer» B. upside down
2615.

Name the thermometer which ranges between \[\text{-10 }\!\!{}^\circ\!\!\text{ C to 110 }\!\!{}^\circ\!\!\text{ C}\].

A. Clinical thermometer
B. Digital thermometer
C. Laboratory thermometer
D. All of these
Answer» D. All of these
2616.

The smallest and old unit of heat energy is:

A. Calorie
B. Calorie
C. Joule
D. none of the above
Answer» B. Calorie
2617.

Which is the best conductor of heat?

A. Silver
B. Iron
C. Aluminium
D. Copper
Answer» B. Iron
2618.

DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: A cook makes the pudding 'baked Alaska'. The pudding is placed in a very hot oven until the top of the egg whites turns brown. It is then removed from the oven. Why does the ice-cream stay cold?

A. Air is a good conductor of heat and conducts the heat away from the ice cream.
B. Air is a poor conductor of heat and stops the heat from reaching the ice cream.
C. The metal dish is a good conductor of heat and conducts the heat away from the ice cream.
D. The metal dish is a poor conductor of heat and stops the heat from reaching the ice cream.
Answer» C. The metal dish is a good conductor of heat and conducts the heat away from the ice cream.
2619.

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): Sea breeze refers to the movement of cold air from sea towards land during day time. Reason (R): Land breeze refers to the movement of cold air from land towards sea during night time.

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.
2620.

Why do we wear woolen clothes in winter?

A. Wool is a poor conductor of heat
B. Wool is a good conductor of heat
C. Both the above are correct
D. None of the above is correct
Answer» B. Wool is a good conductor of heat
2621.

The final temperature of a mixture of water obtained by mixing equal volumes of water at \[2{}^\circ C\] and\[4{}^\circ C\] will be

A. \[1{}^\circ C\]
B. \[2{}^\circ C\]
C. \[3{}^\circ C\]
D. \[4{}^\circ C\]
Answer» D. \[4{}^\circ C\]
2622.

Which one of the following animals is called scavenger?

A. Tiger
B. Elephant
C. Bear
D. Vulture
Answer» E.
2623.

Which one of the following is correct about forest?

A. Forest provides habitat for a number of living organisms
B. Forest helps in maintaining ecological balance
C. Plants and animals are two important components of a forest
D. All of these
Answer» E.
2624.

B Study the given diagram Which of the following components is exchanged by plants and animals for their life processes to take place?

A. Space
B. Gases
C. Water
D. Nutrients
Answer» C. Water
2625.

Chipko movement is concerned with which of the following processes?

A. Conservation of natural resources.
B. Plant/forest conservation.
C. Plant hybridization.
D. Environmental pollution.
Answer» C. Plant hybridization.
2626.

What does the diagram given below represent?

A. The life cycle of grass.
B. A population.
C. Animals living in a habitat.
D. A food chain.
Answer» E.
2627.

Arrange the following in terms of artificial and natural fibres. Flax, Wool, Acetate, Nylon, Rayon

A. Artificial fibres - Woof, Rayon. Natural fibres - Flax, Acetate, Nylon
B. Artificial fibres - Nylon, Acetate, Rayon. Natural fibres - Flax, Wool
C. Artificial fibres - Flax, Wool. Natural fibres - Acetate, Nylon, Rayon
D. Artificial fibres - Nylon, Wool. Natural fibres - Flax, Acetate, Rayon
Answer» C. Artificial fibres - Flax, Wool. Natural fibres - Acetate, Nylon, Rayon
2628.

Which one of the following is a wool-yielding animal?

A. Lama
B. Alpaca
C. Yak
D. All of these
Answer» E.
2629.

Which of the following statements is not correct? (i) Coarse wool is obtained from Marwari. (ii) Anthrax is a viral disease. (iii) Combing is done before scouring. (iv) Bakharwal is found in Jammu and Kashmir.

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)
Answer» C. (iii) and (iv)
2630.

DIRECTION: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column - I Column - II (A) Silk industry (p) Muga (B) Silk worm (q) Silk (C) Queen of textiles (r) Bombyx mori (D) Non-mulberry silk (s) Respiratory disease

A. (A) \[\to \] (p), (B) \[\to \] (s), (C) \[\to \] (r), (D) \[\to \] (q)
B. (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (q)
C. (A) \[\to \] (s), (B) \[\to \] (r), (C) \[\to \] (q), (D) \[\to \] (p)
D. (A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (p), (D) \[\to \] (s)
Answer» D. (A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (p), (D) \[\to \] (s)
2631.

DIRECTIONS: On the basis of following diagram / picture answer the questions given below: In the circuit below, which switch should be left open and which switch should be left closed so that only bulb Y lights up? Switch A Switch B Switch C Switch D

A. Closed Closed Open Open
B. Closed Open Open Closed
C. Open Open Closed Closed
D. Open Closed Closed Open
Answer» D. Open Closed Closed Open
2632.

When the strength of the current flowing through a coil is increased, which of the following statements is true for it?

A. Strength of the magnetic field decreases,
B. Strength of the magnetic field increases,
C. Amount of heat generated due to resistance decreases,
D. Strength of the magnetic field remains constant,
Answer» C. Amount of heat generated due to resistance decreases,
2633.

Which of the following appliances does not use an electromagnet?

A. Washing machine
B. Refrigerator
C. Electric heater
D. Electric bell
Answer» D. Electric bell
2634.

When current is passed through a conductor, the heat produced in it depends upon I. The material of the conductor II. The current flowing through the conductor III. The time for which the current flows.

A. I and II only
B. I and III only
C. II and III only
D. All I, II and III
Answer» E.
2635.

Dark blue is the colour of indicator on dissolving into which one of the following solution?

A. Sulphur
B. Ammonia
C. Oxygen
D. Hydrogen
Answer» C. Oxygen
2636.

From the options given below, choose the correct option for the natural colour of litmus?

A. Red
B. Purple
C. Blue
D. Yellow
Answer» C. Blue
2637.

Study the given Venn diagram carefully.Identify 1, 2 and 3.

A. 123Do not react with metalsReact with litmusDo not react with carbonates
B. 123Are sour in tasteReact with carbonatesAre soapy to touch
C. 123Have \[O{{H}^{-}}>{{H}^{+}}\]Have \[O{{H}^{-}}={{H}^{+}}\]Have \[{{H}^{+}}>O{{H}^{-}}\]
D. 123React with carbonates to form \[C{{O}_{2}}\] gasCan be identified by using indicatorsTurn China rose indicator green
Answer» E.