Answer:
living, nonliving
Explanation:
all living and non living things in an area make up an ecosystem
Answer:
The type of front depends on both the direction in which the air mass is moving and the characteristics of the air mass. There are four types of fronts that will be described below: cold front, warm front, stationary front, and occluded front.
Answer:
Green chemistry, or sustainable chemistry, involves creation on the molecular level:
Explanation:
<span>Carbon is the only element that can form many different compounds. Each carbon atom can form four chemical bonds to other atoms. This allows it to form rings and chains.</span>