Playing is one way mammals and other animals learn how to behave, and exercise is fun if it is also play. Given these facts, what can teach animals how to behave among the following options: - adding heat - humans - fossil fuels - A computer - nerves - people - irradiation - exercise
exercise

Aflashlight requires a source of electricity to produce light, and flashlights can help children see better. Given these facts, children see better with a source of electricity to do what among the following options: - focusing a lens - staying warm - survival - reproduce - produce light - remove electricity - produce darkness - remove light
produce light

Q: Aflower 's purpose is to produce seeds, and planting seeds is a study of seeds and their growth. Given these facts, a flower's purpose is to be what among the following options: - planted - dead - fertile - observed - ruined - dormant - reproduce - food
A: planted

Question: Tectonic plates being pushed together causes earthquakes, and tectonic plates can contain both continental and oceanic crust F 25. Given these facts, what can be pushed together to form an earthquake among the following options: - fibrils - volcanos - crust - energy - trees - waves - boulders on the earth - rocks
Answer: crust

*Question*
Amphibians have permeable skin that easily absorbs substances from the environment, and toads and frogs are both amphibians. Given these facts, what has permeable skin that easily absorbs substances from the environment among the following options: - cats - a fish - toads - ferns - dogs - humans - animals - bats
**Answer**
toads

Alaser is used for producing light, and light is the visible form of electromagnetic energy. Given these facts, a laser is used for producing what among the following options: - an electron microscope - electromagnetic energy - heat is produced - chemical changes - Electrical energy - hydrogen and oxygen - activation energy - objects that have mass
electromagnetic energy