Answer:
I think the other person in the comments was right but just so you know obsidian, igneous rock, extrusive
Explanation:
Orbital effects on climate. There are various solar/celestial effects that exist which have an effect on Earth's climate. These effects usually occur in cycles, and primarily include how Earth's obliquity, the eccentricity of Earth's orbit, and the precession of the equinoxes and solstices affect Earth's climate.
Answer:
its A
Explanation:
In living organisms, phosphorus can be found in nucleic acids.
JUST TOOK THE TEST
7) topsoil
8) subsoil
9) parent material/weathered rock
10) bedrock
11) humus = the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms
12) organic layer (very top)
13) crop rotation, contour plowing, no-till farming