Question
NO ONE HAS ANSWERED
1. How do microorganisms affect the quality of soil?
by breaking down the remains of dead organisms***
by creating tunnels
by absorbing water
by increasing mechanical weathering
2. How does the C horizon form?
Rainwater washes clay and minerals from the A horizon to the C horizon***
Plant roots weather pieces of rock.
Plants add organic material to the soil.
Bedrock weathers, and rock breaks up into soil particles.
3. What makes up soil besides rock particles, minerals, air, and water?
color and chemistry
texture and pore space
decayed organic matter***
oil
4. A geologist is studying a layer of soil in the Sahara. The soil layer contains little humus but a lot of clay and other rock particles. Which soil layer is it?
A horizon
B horizon***
C horizon
bedrock
1. How do microorganisms affect the quality of soil?
by breaking down the remains of dead organisms***
by creating tunnels
by absorbing water
by increasing mechanical weathering
2. How does the C horizon form?
Rainwater washes clay and minerals from the A horizon to the C horizon***
Plant roots weather pieces of rock.
Plants add organic material to the soil.
Bedrock weathers, and rock breaks up into soil particles.
3. What makes up soil besides rock particles, minerals, air, and water?
color and chemistry
texture and pore space
decayed organic matter***
oil
4. A geologist is studying a layer of soil in the Sahara. The soil layer contains little humus but a lot of clay and other rock particles. Which soil layer is it?
A horizon
B horizon***
C horizon
bedrock
Answers
Ms. Sue
The first three are right. I don't know the fourth.
Iris
YOU WERE WRONG. 2. WASN'T RIGHT, I GOT A 75%!
Ms. Sue
You were wrong. It's very important to know what your text says.
Writeacher
Holy smoke! Did you look at the answer choices for #4?
=(
=(
James Doyle
Writeacher your right.
SHUT UP
A
D
C
B
You’re welcome
D
C
B
You’re welcome
SHUT UP IS 100% CORRECT!
I GOT AN 100
It’s
A
D
C
B
Science 7b lesson 5 unit 4 ecology quick check
It’s
A
D
C
B
Science 7b lesson 5 unit 4 ecology quick check