How does a thick layer of algae growing on the surface of a pond affect the lives of other organisms living in the pond ?

Why are people not able to scuba dive in the deep part of the ocean

Remember to use the proper number of significant figures and leading zeros in all calculations. gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?