Complete the following sentence.
Earthworms improve the texture and composition of the soil, aerating compacted earth, adding nitrogen to the soil, and helping form small clusters of soil, called (blank)
which their slime helps hold together

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a.the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

What noticeable trend from this graph might be used to make a conclusion?

What is the difference between a meteoroid and a meteor?