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Margarita [4]
3 years ago
9

What makes desert pavement different from a sand dune

Biology
1 answer:
STALIN [3.7K]3 years ago
6 0
In deserts, the wind picks up small particles and leave behind larger rocks to form Desert pavement. Moving sand may blast rocks and other features to create ventifacts.The sand is transported until it is deposited in a sand dune.
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The nucleus of "Lead-208", 208 82 Pb, has 82 protons within a sphere of radius 6.34×10-15 m. Each electric charge has a value of
jarptica [38.1K]

Answer:

2.94 × 10²⁰ N/C

Explanation:

Given that:  

The nucleus of "Lead-208 has 82 protons,

with a radius (r) 6.34×10-15 m, &

each electric charge has a value of 1.60218 × 10^-19 C

∴ The formula for calculating an electrical field at the surface of the nucleus is:

 E=\frac{k*q}{r^2}  

Substituting our values into the equation above, we have;

 E = \frac{8.98755*10^8*82(1.60218*10^{-19C)}}{(6.34*10^{-15}_m)^2}

E = 2.93870499×10²⁰ N/C

E ≅ 2.94 × 10²⁰ N/C

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3 years ago
The transport tissues of vascular plants are the _____ and _____. xylem; cortex phloem; pith xylem; phloem parenchyma; collenchy
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The answer is <span>xylem and phloem.

Xylem and phloem are the transport tissues of vascular plants. </span><span>Parenchyma and collenchyma are ground tissue, while pith and cortex are stem tissue.
</span><span>Xylem and phloem provide transportation of water, minerals, food, and nutrients. Xylem transport water and minerals from the root to the upper parts of the plant. Phloem transports food and nutrients from the leaves, where they are produced, to the growing or storage parts of the plants.


</span>
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In the human body, the larynx is attached to the trachea. True or False.
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<span>In the human body, the larynx is attached to the trachea. This is TRUE.      </span>
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Explanation:

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The three parts of an amono acid are the carboxyl group(-COOH) an amino group(-NH2) and a radical that differs from amino acid to amino acid(-R)

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