Fact 1: Mutations are essential for evolution to occur. Fact 2: Evolution Evolution means change over time. Given the two facts above, what is essential for change over time?
OPTIONS:
- Light
- Chemical energy
- Essential oil.
- evaporation
- Currency.
- Clocks.
- colors
- Mutations.

Answer: Mutations.

Question: Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: To fisherfolk, coral reefs are homes to fish that are waiting to be caught. Given the two facts above, what do exoskeletons secreted by corals do?
OPTIONS:
- Give homes to humans
- Give homes to penguins
- competing for resources
- Give homes to fish
- reproduce
- Give homes to birds
- preventing heat transfer
- protect them
Answer: Give homes to fish

input with options: Fact 1: Plants that are adapted to very dry environments are called xerophytes. Fact 2: Plants that have adapted by altering their physical structure are called xerophytes . Given the two facts above, what do Xerophytes do to adapt to dry environments?
OPTIONS:
- By wind and rain
- The flowers are pollinated
- photosynthesis.
- Transfers energy
- To conserve energy
- alter their physical structure
- thermal insulators
- hydrate their cells
output: alter their physical structure

Q: Fact 1: Antigens are molecules that the immune system recognizes as foreign to the body. Fact 2: An allergy is a reaction to a substance the body recognizes as foreign. Given the two facts above, an allergy can be caused by?

OPTIONS:
- antigens
- Pesticides
- cold weather
- fever
- viruses
- food
- Smoking
- germs

A: antigens

input: OPTIONS:
- erosion
- loose soil
- an ocean
- a wave
- a delta
- wind
- a lake
- flooding Now, answer this question: Fact 1: Adelta is formed by deposition of sediment at the mouth of a river by water fanning out. Fact 2: After sediments are deposited, they are gradually buried by more sediments. Given the two facts above, what can lead to the gradual burial of more sediments?
A:
output: a delta

Question: Fact 1: Moss causes chemical weathering. Fact 2: Chemical weathering is the chemical disintigration of rocks. Given the two facts above, what does moss do to a rock?
OPTIONS:
- It remains dormant
- Enriches the soil
- Causes it to disintegrate
- depress neuronal excitability
- decreases its bodily water
- It used to be covered by water
- absorb light energy
- refract or absorb.
Answer:
Causes it to disintegrate