Q: You are presented with the quiz "What is the rate of ice wedging?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cycles of freezing and thawing water cause ice wedging" and "the fact is that ice seldom freezes or thaws at a uniform rate". So, what's the best answer to the question?

OPTIONS:
- In the winter
- erosion
- mechanical
- Physical weathering
- Dilution
- friction
- it fluctuates
- kinetic

A: it fluctuates

Q: You are presented with the quiz "What type of job do ethologists have?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "ethologists usually study how animals behave in their natural environment" and "animals are wild and can be dangerous". So, what's the best answer to the question?

OPTIONS:
- dangerous
- health
- useless
- easy
- lie detectors
- it needs them
- basic
- recovery

A: dangerous

Q: You are presented with the quiz "What does pollen consist of tiny grains of?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "pollen consists of tiny grains that are the male gametes of plants" and "animals that reproduce sexually produce sex cells, or gametes". So, what's the best answer to the question?

OPTIONS:
- it helps plants in growing
- the female sexual organs
- Something with exactly eight protons
- seeds
- Microscopic organisms
- the male sex cells of plants
- bees
- sub-units of species

A: the male sex cells of plants

Q: You are presented with the quiz "One of the major consequences of a drop in precipitation is " But you don't know the answer, so you turn to your teacher to ask for hints. He says that "drought is when amount of precipitation decreases" and "if there's a drought, a lot of people die". So, what's the best answer to the question?

OPTIONS:
- shattered rain gauges
- enormous damage to homes
- floods
- Plant growth is reduced
- a lot of human deaths
- meteorite impacts
- The bending of a ray of light
- major threat to health

A:
a lot of human deaths