How do soils form?
a. plants provide organic matter and minerals to make soil.
b. erosion transports mineral particles, and plants die and decay.
c. plants cement mineral particles together to form soil.
d. weathering breaks rocks into minerals, and plants die and decay.

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

More solar radiation is absorbed by earth’s surface than by

Sound is a disturbance that travels through a medium as a