If brakes cause friction, then what causes friction? Answer choices: - chemicals - Energy. - energy - wind - driving - brakes - heat - nerves
brakes

If aforce that pulls on things pulls objects towards planets, then aforce that pulls on things pulls objects towards what? Answer choices: - planets - coastlines - Energy. - rivers - loose soil - rock - support - earth
planets

Q: If shallow tropical water is warm, then shallow tropical water is what? Answer choices: - porous - low in biodiversity - cold - uninhabited - pretty - rain - warm - calm
A: warm

Question: If soil comes from rocks, then where does soil come from? Answer choices: - fields - magma - earth - rocks - volcanoes - crust - down - water
Answer: rocks

*Question*
If trunk circumference and height in young trees corresponds with the number of rings in the trunk, then what is one thing that rings can tell you? Answer choices: - chemical changes - encoded information - coded genes - age of a woman - age of a tree - age of a lake - it can be seen - size of a tree
**Answer**
age of a tree

(Q).
If some viruses have an envelope of enzymes and proteins, then what might have an envelope of proteins and enzymes? Answer choices: - fur seals - some viruses - Most plants - a fish - animal transport - animals - chickens - it needs them
(A).
some viruses