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3 years ago

What happens since natural vegetation has cleared

Geography

1 answer:

My name is Ann [436]3 years ago

4 0

Answer:

Clearing of vegetation can lead to the spread of weeds by opening up areas of bare soil for weed seeds to germinate, and decreased competition from native species. Removal of dead plant material (such as dead stags, and logs and litter from the forest floor) can impact on threatened species.

Explanation:

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Which of the following statements is not true? a. About 30 percent of all Belgians speak French, while about 55 percent speak Fl

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c. Relations between Belgium’s two ethnic groups improved after the country gained its independence from the Netherlands in 1830.

The statement which is not true is that relations between Belgium’s two ethnic groups improved after the country gained its independence from the Netherlands in 1830 because it is true that both French and Flemish are official languages of Belgium, as it is true that about 30 percent of all Belgians speak French, while about 55 percent speak Flemish. The Belgian government has passed laws to decentralize its government. is also a true statement, leaving only c as possible response.

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I think the least dense

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Which was a trading partner of the Indian Ocean Complex?

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What is the measure of Angle D E F? 45° 73° 107° 117°

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3 years ago

If a star is able to stabilize after there is no more hydrogen in its core, then it is now fusing helium nuclei together in a re

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Answer: The correct answer is Option b.

Explanation:

Nuclear fusion reaction is defined as the reaction in which lighter nuclei combine together to form a single heavier nuclei.

Another name for helium nuclei is alpha particle.

For the given options:

Option a: The CNO cycle

This cycle is named as carbon-nitrogen-oxygen cycle. In this cycle, carbon absorbs a proton to form nitrogen which further absorbs a photon to form oxygen. Thus, helium particles are not getting fused in this process.

Option b: The triple alpha process

This process is a set of nuclear reaction in which 3 alpha or helium nuclei combine together to form carbon nucleus.

The equation representing the fusion process follows:

$_2^4\textrm{He}+_2^4\textrm{He}\rightarrow _4^8\textrm{Be}+\gamma\\\\_4^8\textrm{Be}+_2^4\textrm{He}\rightarrow _6^{12}\textrm{C}+\gamma$

Option c: Photo dissociation

This is defined as the process in which a chemical compound is broken down by photons. Thus, helium particles are not getting fused in this process.

Option d: The proton-proton chain

This process is a set of nuclear fusion reactions by which stars convert hydrogen nucleus to helium nucleus. The chemical reactions for this process are:

$_1^1\textrm{H}+_1^1\textrm{H}\rightarrow _1^2\textrm{H}+_{+1}^0\textrm{e}+\text{energy}\\\\_1^2\textrm{H}+_1^1\textrm{H}\rightarrow _2^3\textrm{He}+\text{energy}\\\\_2^3\textrm{He}+_1^1\textrm{H}\rightarrow _2^4\textrm{He}+_{+1}^0\textrm{e}+\text{energy}$

Here, fusion of protons takes place.

Hence, the correct answer is Option b.

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4 years ago

What happens since natural vegetation has cleared​

What happens since natural vegetation has cleared