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Svetradugi [14.3K]
3 years ago
8

Which of the following gases was most likely present in earth's earliest atmosphere

Biology
1 answer:
dexar [7]3 years ago
8 0
Hydrogen is the right answer
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i thank we could use one

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The greenhouse and enhanced greenhouse effects refer to the return of approximately ______ percent and greater than ______ perce
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Answer:

The greenhouse and enhanced greenhouse effects refer to the return of approximately <u>80</u> percent and greater than <u>80</u> percent of the heat radiated by Earth.

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During natural greenhouse effect :

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. Re-radiation of heat occurs

. Less re-emitted heat

. More heath escapes into space

Hence the greenhouse effect refers to return of 80% of heat radiated by Earth.

While during Human Enhanced Greenhouse effect :

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Hence the enhanced greenhouse effect refers to return of more than 80% of heat radiated by Earth .

5 0
3 years ago
The structure of a substrate P strongly resembles substrate Q. In an experiment, By mistake P was used instead of Q as a substra
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<h3><u>Answer;</u></h3>

C) P and Q have similar binding properties

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  • <u><em>Enzymes are biological catalysts that speeds up chemical reactions. Substrates are substances that are acted on by an enzyme to form a product.</em></u>
  • <u><em>An enzyme catalyzed reaction occurs when the substrate binds to the active site of an enzyme to form and enzyme-substrate complex. </em></u>
  • <em><u>Substrate P and Q are structurally similar which means they are in a position of binding and fitting in the active site of an enzyme. The strong structural similarity means that the binding properties of these two different substrates may be similar. </u></em>
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