If you were to observe a handful of soil, what materials would you most likely find?
a) weathered rock and decomposed organic remains
b) small pieces of recycled glass and tiny pebbles
c) large minerals and fossilized remains of organisms
d) small living plants and hardened lava from a volcano

what could people do to decrease erosion of the earth’s surface?
a) cut down more trees.
b) use more land to plant crops.
c) allow natural vegetation to grow.
d) allow cattle to graze more often.

the uppermost horizon, horizon o, in this profile is composed mostly of while the lower horizon, horizon c, is composed mostly of
a) silt; gravel.
b) gravel; rocks.
c) organic matter; rocks.
d) top soil; organic matter.

how do microorganisms in the soil affect the soil's fertility?
a) they convert the nutrients in the soil to compounds that plants cannot absorb.
b) they contaminate the water in the soil, making it difficult for plants to get water.
c) they decompose the remains of plants and animals and add nutrients back to the soil.
d) they fix nitrogen in the soil making it difficult for plants to get this vital nutrient.

which term describes cycles of hot and cold temperatures which expand and contract rock in combination with constant wind and water which eventually leads to rocks cracking and breaking down to form sedimentary rock?
a) deposition
b) lithification
c) physical weathering
d) chemical weathering

sedimentary rocks found high in the himalayan mountains contain fossils of clams, sea snails, and other ocean life forms. what does this tell us about the himalayan mountains?
a) continental drift resulted in the movement of tectonic plates.
b) there was once a large salt water lake on top of the mountains.
c) animals, that now live on the mountains, once lived under water.
d) the plates that formed these mountains were once under an ocean.

to solve a problem she was having, mrs. colson added some rocks through her flowerbed just under her rain gutter. what was most likely mrs. colson's problem?
a) she was having a problem with insects burrowing in her flowerbed soil.
b) the water from her gutter pipe was washing away the soil in her flowerbed.
c) the soil was blocking the path of the water flowing out of the gutter pipe.
d) the roots of her larger plants began poking through the dirt under the gutter.

clear-cut logging is a method of cutting down all the trees in a particular area. this type of logging is most likey going to effect which earth process?
a) erosion
b) climate
c) weathering
d) mountain building

according to the fossil record found across this area of the coastal united states, what conclusion can we make about area a?
a) vertebrates never lived in area a.
b) area a was completely underwater in the past.
c) life forms appeared in area a before areas b and c.
d) area a was once a land mass that eventually became submerged.

soil #1 soil #2 soil #3 soil #4
has some organic matter has lots of organic matter has no organic matter has some organic matter
mostly sand, clay, and silt mostly pebbles mostly clay; some sand mostly sand and pebbles

alexa has mixed four samples of soil. she is going to plant a tomato seedling in each one. which soil should she use for the tomato plant?
a) soil #1
b) soil #2
c) soil #3
d) soil #4

mrs. palmer held up a plant with its roots attached during a science lesson. she passed around a sample of the soil that the plant was growing in. she said that plant roots had grown down easily in this type of soil. this type of soil is also a mixture of sand, silt, and clay. what type of soil is mrs. plamer describing to her class?
a) humus
b) loam
c) subsoil
d) topsoil

weathering contributes to the composition of soil by adding
a) color.
b) moisture.
c) nutrients.
d) sediment.

answer the question as soon as possible. be sure about the answer. first one to answer will get brainliest