Ques:Earthworm burrows help aerate soil, which is also good for plants, and aeration quickly changes the chemistry of the soil. Given these facts, what do earthworms do to soil among the following options: - Destroy soil - Damages them - Exfoliation - Converting waste. - competing for resources - Compact soil - Make soil denser - Change the chemistry

Ans:Change the chemistry
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Ques:Friction causes an object to lose energy, and friction causes the decline of speed. Given these facts, the decline of speed is associated with what among the following options: - an object gaining energy - a lot of human deaths - decrease stamina - hyperthyroidism - an object losing energy - an object gaining momentum - body temperature reduces - an object going faster

Ans:an object losing energy
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Ques:All animals are heterotrophs, and all cats are animals. Given these facts, what are heterotrophs among the following options: - sheep - cats - toads - small - koalas - fungi - bats - Birds

Ans:cats
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Ques:Water causes refraction of light, and refraction Refraction is the bending of light rays. Given these facts, what happens to light rays in water among the following options: - evaporation - they get wet - heat energy - a wave - they bend - they change frequency - break off - they vanish

Ans:
they bend
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