Which of the following scenarios represents change to an ecosystem brought about by biotic factors?

a. a wildfire caused by lightning striking a tree
b. a flood caused by a severe storm

c. a landslide caused by cattle overgrazing

d. a volcano

The solstices and equinoxes, and the number of hours of daylight associated with each, are major factors in the seasons. use the drop-down menus to identify the month when each of these events occurs. the winter solstice in the northern hemisphere: an equinox in both hemispheres: the summer solstice in the northern hemisphere:

By locating production facilities abroad, multinational corporations must pay more for labor true or false

What can happen to solar radiation when it enters earth’s atmosphere? check all that apply. it is absorbed by earth. it is reflected by clouds. it is reflected by glacial ice. it is condensed into visible light. it is amplified by water molecules.