To aid in moisture retention, _____ matter is added to the soil because it holds many times its own ...

To aid in moisture retention, _____ matter is added to the soil because it holds many times its own weight in water.

A) nitrogen
B) ash
C) mulch
D) organic

Question 2

Soil is composed of _____ ingredients.

A) 2
B) 4
C) 6
D) 8

Question 3

If green plants show a _____ color, this indicates a nitrogen deficiency.

A) white
B) yellow
C) dark green
D) purple

Question 4

Match the pest terms with the pest definitions.

a. arachnid d. pest
b. vector e. weed
c. insect
1. living organism that carries disease organism
2. organism that may adversely affect human activities
3. eight-legged animal
4. considered undesirable and out of place
5. six-legged animal

Question 5

Plants that host nitrogen-fixing bacteria are called ____.

A) legumes
B) vegetables
C) microorganisms
D) nematodes

Question 6

Organic matter improves soil structure through _____.

A) mulching
B) peat moss
C) aggregation
D) wood chips

Question 7

What is the area of the soil called that contains the roots of plants?

A) parentsphere
B) hemisphere
C) R horizon
D) rhizosphere

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To aid in moisture retention, _____ matter is added to the soil because it holds many times its own ...

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