MCQOPTIONS
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MCQOPTIONS
This section includes 2268 Mcqs, each offering curated multiple-choice questions to sharpen your Grade7 knowledge and support exam preparation. Choose a topic below to get started.
| 1951. |
The miniature shoot in a miniature plant is known as |
| A. | radicle |
| B. | plumule |
| C. | cotyledon |
| D. | zygote |
| Answer» C. cotyledon | |
| 1952. |
The seeds in the digestive system of animals are |
| A. | absorbed in large intestine |
| B. | digested later in small intestine |
| C. | passed out through anus |
| D. | stored in rectum |
| Answer» D. stored in rectum | |
| 1953. |
The removal of salt from water on a large scale is known as |
| A. | water logging |
| B. | salination |
| C. | desalination |
| D. | distillation |
| Answer» D. distillation | |
| 1954. |
Which gas is often used as a energy source at the city's wastewater treatment plants? |
| A. | ethane |
| B. | carbon |
| C. | methane |
| D. | nitrogen |
| Answer» D. nitrogen | |
| 1955. |
Polio, hepatitis and typhoid are examples of |
| A. | water-borne diseases |
| B. | water-washed diseases |
| C. | water-related diseases |
| D. | anti-water diseases |
| Answer» C. water-related diseases | |
| 1956. |
The unwanted substance of water may be harmful for |
| A. | plants |
| B. | animals |
| C. | plants, animals and people |
| D. | plants and people |
| Answer» D. plants and people | |
| 1957. |
To prevent excess use of tap water, we can collect |
| A. | rain water |
| B. | stream water |
| C. | river water |
| D. | sea water |
| Answer» B. stream water | |
| 1958. |
A larvae of a worm can get into the human body even by |
| A. | ears |
| B. | eyes |
| C. | skin |
| D. | nose |
| Answer» D. nose | |
| 1959. |
The spread of a disease through drinking water that is caused by water parasites, is known as |
| A. | water-borne disease |
| B. | water-washed disease |
| C. | water-related disease |
| D. | anti water disease |
| Answer» D. anti water disease | |
| 1960. |
The mortality rate in children due to polluted water or lack of water is |
| A. | 14000 |
| B. | 35000 |
| C. | 70000 |
| D. | 90000 |
| Answer» D. 90000 | |
| 1961. |
Fertilizers that are washed away into rivers help in formation of |
| A. | algae |
| B. | fungi |
| C. | fungus |
| D. | all of them |
| Answer» B. fungi | |
| 1962. |
The worst disease of the water-related diseases is |
| A. | typhoid |
| B. | diarrhea |
| C. | bilharzia |
| D. | hepatitis |
| Answer» D. hepatitis | |
| 1963. |
During respiration, carbon dioxide is |
| A. | exchanged |
| B. | taken in |
| C. | given out |
| D. | transferred to roots |
| Answer» D. transferred to roots | |
| 1964. |
Several layers of cells at the tip of the root form |
| A. | small roots |
| B. | root caps |
| C. | root hairs |
| D. | all of them |
| Answer» C. root hairs | |
| 1965. |
The phenomenon of movement of particles from higher concentration to lower concentration without the use of energy is known as |
| A. | diffusion |
| B. | osmosis |
| C. | active transport |
| D. | respiration |
| Answer» B. osmosis | |
| 1966. |
Stem is kept on the ground due to the |
| A. | strength of roots |
| B. | strength of leaves |
| C. | strength of soil |
| D. | strength of flowers |
| Answer» B. strength of leaves | |
| 1967. |
During respiration, oxygen is |
| A. | given out |
| B. | taken in |
| C. | exchanged |
| D. | transferred to roots |
| Answer» C. exchanged | |
| 1968. |
The tremendous force which pulls the water and mineral salts up to the leaves can pull these contents to the height of |
| A. | 20 meters |
| B. | 30 meters |
| C. | 40 meters |
| D. | 50 meters |
| Answer» E. | |
| 1969. |
The small openings in the pits of the bark is known as |
| A. | cuticles |
| B. | lenticels |
| C. | hard stomata |
| D. | hard pores |
| Answer» C. hard stomata | |
| 1970. |
When the state of matter is changed from liquid to gas, we call it |
| A. | melting |
| B. | freezing |
| C. | boiling |
| D. | condensing |
| Answer» D. condensing | |
| 1971. |
Hydrogen is obtained by |
| A. | reaction of methane |
| B. | reaction of water |
| C. | combustion of methane |
| D. | boiling of water |
| Answer» B. reaction of water | |
| 1972. |
The regular arrangement of particles is found in |
| A. | solids and liquids |
| B. | liquids |
| C. | solids |
| D. | gases |
| Answer» D. gases | |
| 1973. |
In liquids the intermolecular force of attraction is equal to |
| A. | potential energy |
| B. | kinetic energy |
| C. | thermal energy |
| D. | nuclear energy |
| Answer» D. nuclear energy | |
| 1974. |
If there is lack of nitrogen in soil, plants turn |
| A. | red |
| B. | orange |
| C. | blue |
| D. | to be stunted |
| Answer» E. | |
| 1975. |
A frictional force acting on an object when it moves through air is called |
| A. | air resistance |
| B. | water resistance |
| C. | air pressure |
| D. | air condensation |
| Answer» B. water resistance | |
| 1976. |
If an object is at rest, the forces acting on it, are |
| A. | balanced |
| B. | unequal |
| C. | higher |
| D. | lower |
| Answer» B. unequal | |
| 1977. |
Shapes and sizes of objects can be changed by the help of |
| A. | force |
| B. | energy |
| C. | heat |
| D. | light |
| Answer» B. energy | |
| 1978. |
In systemic diagram, force can be represented by an |
| A. | arrow |
| B. | plus |
| C. | dot |
| D. | star |
| Answer» B. plus | |
| 1979. |
Density has 'SI' unit which is |
| A. | kilogram per cubic meter |
| B. | gram per cubic meter |
| C. | meter per kilogram |
| D. | meter per cubic meter |
| Answer» B. gram per cubic meter | |
| 1980. |
Waves on top of spectrum are |
| A. | infrared waves |
| B. | gamma rays |
| C. | x-rays |
| D. | ultraviolet rays |
| Answer» B. gamma rays | |
| 1981. |
Focal point is the point where |
| A. | light spread out quickly |
| B. | light rays meet |
| C. | lens can magnify the most |
| D. | dispersion of light occurs |
| Answer» C. lens can magnify the most | |
| 1982. |
The angle which is formed between normal ray and the ray entering a medium is known as |
| A. | critical angle |
| B. | angle of incidence |
| C. | angle of reflection |
| D. | angle of refraction |
| Answer» C. angle of reflection | |
| 1983. |
Night blindness is caused due to |
| A. | lack of rods |
| B. | over numbering of cones |
| C. | problem in cones |
| D. | problem in rods |
| Answer» E. | |
| 1984. |
To enable you to see a rainbow the sun should be positioned |
| A. | in front of you |
| B. | behind you |
| C. | on your left side |
| D. | on your right side |
| Answer» C. on your left side | |
| 1985. |
The index that identifies each object is known as |
| A. | rare active index |
| B. | refractive index |
| C. | reflective index |
| D. | bending index |
| Answer» C. reflective index | |
| 1986. |
The dispersion of white light into seven different colors is known as |
| A. | dispersion |
| B. | spectrum |
| C. | prism |
| D. | multi light bands |
| Answer» C. prism | |
| 1987. |
The scientist who presented the theory of dispersion of light was |
| A. | French |
| B. | English |
| C. | Chinese |
| D. | Spanish |
| Answer» C. Chinese | |
| 1988. |
Like sound, light travels as a |
| A. | wave |
| B. | heat |
| C. | radiation |
| D. | volume |
| Answer» B. heat | |
| 1989. |
If red, green and blue are mixed together, the formed color of light will be |
| A. | blue |
| B. | violet |
| C. | indigo |
| D. | white |
| Answer» E. | |
| 1990. |
1000mA of current is equal to |
| A. | 1A |
| B. | 10A |
| C. | 100A |
| D. | 0.1A |
| Answer» B. 10A | |
| 1991. |
Ammeter can be connected anywhere because current is |
| A. | same in the whole circuit |
| B. | least near the bulb |
| C. | least near the cell |
| D. | greatest near the switch |
| Answer» B. least near the bulb | |
| 1992. |
Another gas, that is used as replacement of argon is known as |
| A. | oxygen |
| B. | carbon monoxide |
| C. | nitrogen |
| D. | hydrogen |
| Answer» D. hydrogen | |
| 1993. |
Maglev trains float on the track because of |
| A. | friction |
| B. | energy |
| C. | electromagnetism |
| D. | mechanical repulsion |
| Answer» D. mechanical repulsion | |
| 1994. |
The volume control regulator in a CD receiver, radio and amplifier also use |
| A. | transistor |
| B. | variable resistor |
| C. | thermistor |
| D. | fixed resistor |
| Answer» C. thermistor | |
| 1995. |
The energy is produced in the form of |
| A. | heat only |
| B. | light only |
| C. | heat and light |
| D. | heat, light and sound |
| Answer» E. | |
| 1996. |
Our universe came into bieng in result of mass |
| A. | explosion |
| B. | evaporation |
| C. | expansion |
| D. | escalation |
| Answer» C. expansion | |
| 1997. |
Clumps join to make |
| A. | large galaxies |
| B. | large stars |
| C. | large planets |
| D. | large clusters |
| Answer» B. large stars | |
| 1998. |
The disc contains a huge bulge in the |
| A. | border |
| B. | outline |
| C. | middle |
| D. | edges |
| Answer» D. edges | |
| 1999. |
Big stars like red supergiant live much |
| A. | longer |
| B. | shorter |
| C. | brighter |
| D. | better |
| Answer» C. brighter | |
| 2000. |
Besides energy, the explosions on the sun also produce |
| A. | radiations |
| B. | electromagnetic waves |
| C. | sounds |
| D. | friction |
| Answer» B. electromagnetic waves | |