science 4th quarter reviewer

one of the environment's most important resources

• humus

• soil

• nutrients

• minerals

how many percent does the soil contain air and water

• 40%

• 50%

• 60%

• 70%

scientist who studies rocks

• geologist

• paleontologist

• biologist

• anthropologist

partially decomposed organic matter in the soil

• mineral

• soil

• nutrients

• humus

scientist who studies life on earth

• geologist

• paleontologist

• biologist

• botanist

kind of soil that has rough or coarse granular particles

type of soil with even bigger and coarser particles

type of soil with small or fine particles

type of soil made of sand,clay and little gravel mixed together

type of soil that has smaller and smoother particles than sand