The lithosphere is the solid, rocky crust covering the planet and the hydrosphere is composed of all the water on the planet
If you’re talking about our solar system, then it is the sun.
2f+10=36 Each friend gets two candy bars (2f) and there are 10 spare bars (10). If the total is 36, then he can only treat 13 friends.
This would be an example of (Europe and also Asia) as they would be at the boarder of the black sea, and also I believe an other sea.
<span>varying from steppe to desert</span>