Question

define the following canopy
Humidity
Wadis
Pollutants​

Answer 1

Answer:

1.In biology, the canopy is the aboveground portion of a plant community or crop, formed by the collection of individual plant crowns. ... Sometimes the term canopy is used to refer to the extent of the outer layer of leaves of an individual tree or group of trees.

2.Humidity is the amount of water vapor in the air. If there is a lot of water vapor in the air, the humidity will be high. The higher the humidity, the wetter it feels outside.

3.a valley, ravine, or channel that is dry except in the rainy season.

4.A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.