Answer: The answer is C.
Explanation: Soil includes 40-45 percent inorganic matter, 5% organic matter, 25% water, and 25% air. The right combination of air, water, minerals, and organic matter is essential for plant life to thrive. Microorganisms (both dead and alive) and decaying plants make up humus, the organic stuff in soil.
Answer:
An eon
Explanation:
The first broad division of the geologic timescale is the eon. Others are Eras, Periods and Epoch.
Eons are the most broad and the largest of divisions of the timescale. There are two categories of the eons which are:
- Hadean eon
- Archean eon
- Proterozoic eon
- Phanerozoic eon
The Phanerozoic eon is the most recent. The Hadean eon is the is the oldest eon.
Approximately 97.5% of the earths water is salt water (saline), and 2.5% is fresh water hope this helps.
<span>
A. Moho barrier </span>The Moho<span> is the boundary between the crust and the mantle in the earth.
</span><span>B. Oceanic crust
</span>is the uppermost layer of the oceanic portion of a tectonic plate. The crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together constitute oceanic
<span>Lower mantle
</span>A large fraction of Earth's interior, from a depth of about 650 km (400 miles) down to 2,900 km (1,800 miles), consists of the lower mantle, which is composed chiefly of magnesium- and iron-bearing silicates, including the high-pressure equivalents of olivine and pyroxene.
<span>upper mantle
</span>The upper mantle<span> begins just beneath the crust and ends at the lower mantle.
</span>
hope this helps you(:
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Answer:
In my opinion, the reason why the fossils spread so far apart is because there was a worldwide flood at some point in history. There is proof of this in one of my personal favorite books.