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Lynna [10]
3 years ago
12

What is life......??

Biology
1 answer:
Ket [755]3 years ago
8 0

life is what you want it to be life could be anything and evrey thing it's what you make of it

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Jenny is learning about the importance of the ozone layer. she was upset to know that there is a depletion of the ozone layer an
NeTakaya

The natural process by which the ozone layer get depleted are sun spots and atmospheric winds. The volcanic eruptions are also responsible for the depletion of the ozone layer.

The thinning of the ozone layer, which is present in the upper atmosphere is called ozone layer depletion. These natural processes causes and some chemicals compounds releases chlorine and bromine, which in exposure of high ultraviolet light causes the depletion of ozone.

The ozone layer found in the stratosphere of the earth atmosphere. This region protects the earth from harmful ultraviolet radiation of the sun. It has potential to absorb around 99% of the harmful ultraviolet radiation.

The main causes of ozone depletion are chloroflorocarbons, carbon tetrachloride, methylbromide. The natural processes does not cause more that 1 to 2 % of the ozone depletion.

To learn more about stratosphere here

brainly.com/question/13497783

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4 0
1 year ago
QUESTION 29 Which headline would be an example of gene therapy? Pet Fish Glow under Ultraviolet Light Farmer Brown's Pigs Have L
ELEN [110]

The right answer is D.


Gene therapy is a method of introducing nucleic acids (DNA or RNA) into the cells of an organism to correct an abnormality, such as a mutation, causing a pathology. It is often a question of bringing a normal and functional gene (transgene) into a cell where the present gene is altered.

Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.

5 0
3 years ago
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What kind of fossils can tell scientists what dinosaurs ate?
statuscvo [17]

Answer:

Coprolites are the type of fossils which can tell the scientist what dinosaurs ate.

Explanation:

A Coprolites is fossilized faeces.They are classified as trace fossils as opposed to body fossils as they give evidence for the animal's behaviour rather than morphology.This name is derived from Greek words.They were first described by William Buckland in 1829.

3 0
3 years ago
The condensation of _____ formed the early oceans. It is an important part of the water cycle. meteorites water vapor living org
Alex787 [66]
The condensation of water vapor formed the early oceans. It is an important part of the water cycle. It is easy to eliminate the other answers in this question. It can't be meteorites, living organisms, or nitrogen.
7 0
3 years ago
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Mercury is a toxin that is of significant concern due to biomagnification. Explain how mercury found in an aquatic environment c
PIT_PIT [208]

Answer: Mercury has been well known as an environmental pollutant for several decades. As early as the 1950's it was established that emissions of mercury to the environment could have serious effects on human health. These early studies demonstrated that fish and other wildlife from various ecosystems commonly attain mercury levels of toxicological concern when directly affected by mercury-containing emissions from human-related activities. Human health concerns arise when fish and wildlife from these ecosystems are consumed by humans.

During the past decade, a new trend has emerged with regard to mercury pollution. Investigations initiated in the late 1980's in the northern-tier states of the U.S., Canada, and Nordic countries found that fish, mainly from nutrient-poor lakes and often in very remote areas, commonly have high levels of mercury. More recent fish sampling surveys in other regions of the U.S. have shown widespread mercury contamination in streams, wet-lands, reservoirs, and lakes. To date, 33 states have issued fish consumption advisories because of mercury contamination.

These continental to global scale occurrences of mercury contamination cannot be linked to individual emissions of mercury, but instead are due to widespread air pollution. When scientists measure mercury levels in air and surface water, however, the observed levels are extraordinarily low.

Explanation:

3 0
3 years ago
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