Which of the following statements about air pollution is not true?
a. air pollution is caused by natural and human processes.
b. carbon monoxide and sulfur oxides are common air pollutants.
c. natural components of air, like carbon dioxide, cannot be considered air pollutants.
d. primary and secondary pollutants are harmful to human health and the environment.

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

What is the following best defines climate?

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.