Why does gravitational potential energy depend on both mass and height? (hint: what two factors affect the strength of gravitational energy? )

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000