likely to be harmed or damaged

Gases in Earth's atmosphere that trap heat near the surface

Chemicals used on plants that do not harm the plants, but kill pests and have negative repercussions on other species who ingest the chemicals.

war, civil disasters, accidents, terrorist acts

Carbon dioxide and carbon monoxide released in the atmosphere, produced by vehicles and industrial processes

Protecting and preserving natural resources and the environment

to stop something from happening before it occurs

grow or develop well or vigorously

a situation involving exposure to danger

adj.) open to attack; capable of being wounded or damaged; unprotected

Causing great damage

the variety of life in the world or in a particular habitat or ecosystem.