Which best describes the role of the atmosphere in protecting life on Earth? A: It absorbs dangerous levels of radiation from the sun, traveling as electromagnetic waves

B: It produces oxygen

C: It stops oxygen from escaping into the atmosphere.

D: It heats the Earth's surface.

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

What human activity increases beach erosion?

When a scientific theory has been tested and proved by the scientific community, it becomes a law