Which scenario describes an interaction between two of Earth’s spheres? 1. Water flows from a stream to a lake.
2. Gravity moves rocks to another location.
3. Lions use energy to catch other animals for food.
4. Bears dig big holes in the ground to protect their young.

D

Explanation:

Bears are living so they are biosphere while the rocks they and Are interacting with are geosphere so it’s biosphere interacting with geosphere hence, D because two spheres interact and gravity isn’t a sphere water is interacting with hydrosphere which arent different so tis basically hydrosphere with hydro and lions use energy is just biosphere with biosphere and last one makes sense cuz it’s two different bio and geo!

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.