Problem:

You are presented with the quiz "Plants can conserve water in order to survive where?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "conserving water can be used for survival in a dry environment" and "we learned about desert plants and how they adapt themselves to the hot dry desert environment so they can survive".   So, what's the best answer to the question?
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A: in the desert


Problem:

You are presented with the quiz "What is how organisms grow and repair themselves?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cell division is how organisms grow and repair themselves" and "mitosis is cell division".   So, what's the best answer to the question?
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A: mitosis


Problem:

You are presented with the quiz "trees can be dispersed by"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if seeds stick to the fur of an animal then that seed will be transported by the animal" and "animals with fur can also help trees disperse their seeds".   So, what's the best answer to the question?
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A: animal fur


Problem:

You are presented with the quiz "what can cause harm to the eyes?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "vinegar can cause harm to the eyes" and "it is this bacteria which turns alcohol into acetic acid, the main component of vinegar".   So, what's the best answer to the question?
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A:
acetic acid