PLEASE HELP Which is an example of non point source of pollution?

A. Rain contains chemicals that seep into the ground
B. Tourists throw trash into the ocean
C. A car mechanic pours oil into the ground

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

What type of tree is the tallest tree in the world?