PLEASE ANSWER THIS QUICKLY
Which of these statements is true?

A. Weathering and erosion affects all rocks on the earth's surface
B. Weathering and erosion only affects sedimentary rocks on the earth's surface
C. Weathering and erosion affects all rocks under the earth's surface
D. Rocks are unaffected by weathering and erosion

i think is is A:weathering and erosion affects all rocks on the earth's surface

1: the largest region of the brain is the:

  cerebrum

2. the term "psychology" literally means:

the process or procedure of the science or study of the mind.

3. the area of the brain responsible for respiration, heart rate, and smooth muscle control of our blood vessels is t

medulla oblongata

4. the structure that conducts nerve impulses to and from the brain and serves as a reflex center for some sensory information without input from the brain is the:

spinal cord

5. the three-layered membrane that covers the brain and spinal cord and literally means membrane is called the:

meninges

6. the cord-like (string-like) structures that carry bio-electrical impulses from one part of the body to another are called

nerves

7. a group of nerve cell bodies that are found outside of the spinal cord and brain are referred to as:

ganglions or ganglia (pl.) “literal meaning knot”

8. the term that means spinal cord inflammation is:

myel/itis

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is