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SCORPION-xisa [38]
3 years ago
12

The growth of mosses and lichens on a bare volcanic region helps prepare the area for the next stages of succession. How do moss

es and lichens most contribute to this process?
Asap

A.
They poison populations of primary consumers.


B.
They build up soil deposits on the rocky ground.


C.
They neutralize deposits of extreme acids in the rocks.


D.
They increase the amount of oxygen in the surrounding air.
Biology
1 answer:
melamori03 [73]3 years ago
4 0

Answer:

The correct answer is - B. they build up soil deposits on the rocky ground.

Explanation:

Lichens and mosses are known as the pioneer species as they prepare the particular region for the next stages of succession on the bare volcanic region. Lichens and mosses grow on the bare rocks and secrete acids to break the rocks and start soil production.

The soil deposits produced by breaking the volcanic rocks by secreting acids from mosses and lichens. Even after dying these species leads to thickening of the soil and increase organic matter for the next stages to grow.

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How do the Earth and Moon compare in terms of gravitational force?
Law Incorporation [45]

The Earth and Moon compare in terms of gravitational force as Earth's gravitational force is stronger than the Moon's.

Option A

<u>Explanation:</u>

According to universal law of gravity, the gravitational force is the attractive force between two objects separated by a distance. The magnitude of gravitational force is directly proportional to the product of masses of the objects and inversely proportional to the square of the distances between them.

In this case, the gravitational force acting on us due to Earth will be considered due to the mass of Earth as the mass of Earth is very large compared to our mass.

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So as the mass of the Earth is greater than the mass of the moon, so the gravitational force of Earth will be stronger than that of Moon.

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3 years ago
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Advocard [28]

Answer:

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Explanation:

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3 years ago
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Let's take an example of coronavirus spread globally this year. The social distancing of 2 meters has significantly reduced the number of people going outside. Ultimately, there are fewer automobiles on the roads and a few industries are running. The result is that the air quality index has been significantly improved. For example, in India, people from 300 km away, can see the Himalayan mountain range very clearly (see image attached). This has not happened in decades after modern industrialization.

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