Q: Answer the question

Which best explains why some reptiles and amphibians lay an abundance of eggs?
OPTIONS:
- It increases the population.
- The eggs provide food for predators.
- These animals do not have to stay with their eggs.
- It increases the chance of some eggs surviving to hatch.

A: It increases the chance of some eggs surviving to hatch.

Q: Answer the question

In order for a glider to fly, its weight must be opposed by
OPTIONS:
- lift.
- drag.
- gravity.
- friction.

A: lift.

Q: Answer the question

Which of these is the most common result of greenhouse gases altering the atmosphere of Earth?
OPTIONS:
- an increase in the air temperature
- a decrease in the air density
- an increase in the intensity of visible light
- a decrease in the thickness of the ozone layer

A:
an increase in the air temperature