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aev [14]
2 years ago
12

Who can help me on this?

Biology
1 answer:
steposvetlana [31]2 years ago
7 0
Option a is the correct answer
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bio 102 The atmospheric ozone layer has been __________since the banning of CFCs (chlorofluorocarbons), but a recent report sugg
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protected; increase

Explanation:

Ozone is composed of trioxygen which is highly reactive gas compared to dioxygen. Ozone layer is present in stratosphere and troposphere and protect the humans from ultraviolet radiations but it may be toxic if inhaled. Ozone can be broken down into molecular oxygen by chlorine and bromine atoms.

A hole was discovered in ozone layer in 1982 and scientist believed that it could be dangerous for human health. The compounds involved in depletion of ozone are mainly Chlorofluorocarbons (CFS) and (HFCS). Then a global agreement was signed in 1987 which leads to prohibition of use of all chemicals that are involved in depletion of ozone layer. The problem of ozone depletion is solved by the agreement and ozone hole started to recover it from 2000.

But recent reports showed that the alternative chemicals used to protect the depletion of ozone layer began to trap the heat inside the earth like greenhouse effect. Now scientists are in search of chemical that can prevent both ozone depletion as well as global warming.

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3 years ago
Examples of monosaccharides disaccharides and polysaccharides.
RUDIKE [14]

Answer:

Glucose, galactose, and fructose are common monosaccharides, whereas common disaccharides include lactose, maltose, and sucrose. Starch and glycogen, examples of polysaccharides, are the storage forms of glucose in plants and animals, respectively. The long polysaccharide chains may be branched or unbranched.

Explanation:

3 0
2 years ago
Please help!
lozanna [386]

B) The data will help to generate a new consensus.


Please correct me if I'm wrong!! :)

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What properties classify diamond as a gemstone?
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Which of the following processes takes place during prophase?
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It would be D. Mitotic spindles form

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