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umka2103 [35]
3 years ago
10

Two main functions of leaves are photosynthesis and____.

Biology
1 answer:
sasho [114]3 years ago
5 0
Gas exchange because each stoma in the leaf can be opened or closed. In the light the guard cells aboard water and become turgid and the stoma opens
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What species is/are formed at the anode of the alkaline fuel cell?
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Fuel cells can make an electricity from a simple electrochemical reaction in which oxygen and hydrogen combine to form water. There are several different types of fuel cell but they are all based around a central design which consists of two electrodes, a negative anode and a positive cathode. These are separated by a solid or liquid electrolyte that carries electrically charged particles between the two electrodes. A catalyst, such as platinum, is often used to speed up the reactions at the electrodes. Fuel cells are classified according to the nature of the electrolyte. Every type needs particular materials and fuels and is suitable for any applications. The article below uses the proton exchange membrane fuel cell to illustrate the science and technology behind the fuel cell concept but the characteristics and applications of the other main designs are also discussed.  Proton Exchange Membrane Fuel Cells (PEMFC)

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3 0
3 years ago
Leaves in areas of ___ humidity have a steeper concentration gradient so water diffuses out of the leaf
tresset_1 [31]

Leaves in areas of low humidity have a steeper concentration gradient so water diffuses out of the leaf fast.

<h3>What is humidity?</h3>

Humidity is used to determine the concentration of water vapour that is available in the air.

when the vapour is high there is high relative humidity when the vapour is low there is low relative humidity and water leaves the surface of leaf fast.

Therefore, Leaves in areas of low humidity have a steeper concentration gradient so water diffuses out of the leaf fast.

Learn more on humidity here,

brainly.com/question/5362026

8 0
1 year ago
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sladkih [1.3K]

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Explanation:

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