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katrin [286]
3 years ago
13

Solar radiation travels through the earth's atmosphere and warms the planet's surface. Greenhouse gases like carbon dioxide in t

he earth's atmosphere reabsorb the heat and warm the planet. The amounts of greenhouse gases have been increasing over the past century, causing the earth's surface temperature to increase. This gradual temperature change is thought to have many negative environmental consequences.
Which of these might be a POSITIVE effect of the increase in carbon dioxide levels?
A) rise in sea levels
B) decrease in plant growth
C) increase in plant growth
D) increased melting of ice caps
Biology
2 answers:
Inessa05 [86]3 years ago
8 0

the correct answer is c} increase in plant growth.

denis-greek [22]3 years ago
5 0
Among the given choices, the only positive effect that may be thought off with the increase in level of CO2 in the atmosphere is the increase of plant growth. Carbon dioxide is an essential compound in the photosynthesis of plants. Therefore, the answer should be letter C. 
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Two solutions will be prepared with the mixture of distilled water and stock solution of KMnO4 (10 mM). Give the correct volumes
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Answer:

See the answer below

Explanation:

<em>Recall that the law of dilution states that the number of moles before dilution must be equal to the number of moles after dilution.</em>

Mathematically,

     molarity x number of moles before dilution = molarity x number of moles after dilution.

For solution A: final molarity = 3 mM, final volume = 2mL, initial molarity of KMnO4 = 10 mM

Applying the equation:

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For solution B:final molarity = 8 mM, final volume = 2 mL, initial molarity = 10 mM

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<u>Hence, Tube B should be made with 1.6 mL of 10 mM KMnO4 stock and 0.4 mL of distilled water to give a solution of 2 mL 8mM KMnO4. </u>

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What is DNA, and how does it function in cells?
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Complex tissues are of two types - Xylem and Phloem.

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