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Ilya [14]
3 years ago
8

In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using co

ntrolled burns to maintain certain ecosystems?
to allow the spread of insects that provide food for animals
to rid the forest floor of accumulated deadwood and brush
to give nonnative plants a chance to colonize the region
to replace mature plants with saplings of the same species
Biology
2 answers:
Murljashka [212]3 years ago
5 0

to rid the forest floor of accumulated deadwood and brush

Nata [24]3 years ago
3 0

Answer: to rid the forest floor of accumulated deadwood and brush

Explanation:

A fire can be a natural or induced limiting factor which is expected to reduce the growth, abundance and distribution of the population of species in an ecosystem.

In human induced fire certain regions of the forests are set on fire and in some regions which exhibit unwanted shrubs and grasses in control amounts to eradicate those shrubs and grasses.

On the basis of the above explanation, to rid the forest floor of accumulated deadwood and brush is the correct option.

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Answer:

A

Explanation:

The correct option that does not describe the science of nutrition would be <u>that many studies have been conducted on the association between certain types of cancer and diet and, therefore, these links are well-understood</u>.

<em>While truly indeed many studies have been conducted linking certain types of cancer and diet, scientists are far from understanding the link between diets and cancer. While some degrees of understanding exists, it is not 100% certain that there is a cause-effect relationship between these two factors, and a large percentage of cases of cancer are caused by factors that cannot be controlled.</em>

The correct option is, therefore, A.

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2 years ago
Rounded rock formations with plant covering. A scientist is studying rock formations. She notices some unusual rocks like those
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The rock formations are the result of the weathering of the big and large rocks by wind and water erosion. The conclusion is that rocks were part of a slow underwater eruption.

<h3>What is the formation of the rocks?</h3>

Rocks can be formed due to volcanic eruptions as when the magma of the volcano rises outwards but, in the underwater surfaces, the magma can't completely rise to the outer surface and faces some pressure.

The oceanic water creates very heavy pressure on the magma of the volcanoes causing them to form some unusual structures that later solidifies into rocks.

Therefore, option  A. is part of a slow underwater eruption.

Learn more about rock formation here:

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Answer:

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