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Amanda [17]
3 years ago
12

Which of the following requires more energy then they produce?

Chemistry
1 answer:
Vikki [24]3 years ago
6 0

Answer:

The answer is endothermic

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Freezing a candy bar is an example of a physical change. <br> True or false
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Answer: This is true.

Explanation:  

 It is true because if becomes frozen, then it is physically harder to melt...

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2 years ago
Match the following descriptions with the correct polysaccharide, note if you answer any part of this question incorrectly a sig
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Glycogen. Cellulose. Amylose. Cellulose. Amylopetin and Glycogen. Amylopetin and Cellulose.

Explanation:

Glycogen is the form that glucose is stored in human body.

Cellulose is the structural part of plant cell walls and human cannot digest it.

Amylose is the polysaccharide linked mainly by the the bonds of \alpha 1,4 glycosidic.

Cellulose is an unbranched polysaccharide linked mainly by the bonds of  \beta 1,4 glycosidic.

Amylopetin and Glycogen are branched polysaccharides linked by the bonds of \alpha 1,4 glycosidic and \alpha 1,6 glycosidic.

Amylopetin and Cellulose are mainly stored in plants.

4 0
3 years ago
Which is a problem associated with the use of trees for biomass? I. Potential deforestation II. Burning fossil carbon III. Poten
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Answer:

Both Option (I) and Option (III)

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Biomass is usually defined as those organic molecules that are obtained from plants and animals, in order to produce energy. It is a renewable resource. Some of the examples of biomass include wood, crop, animal fossil fuel.

A large number of trees are being cut down to construct these biomass energies such as woods. This results in the deforestation process where the forested areas are converted into empty dry soils. This results in the increasing rate of erosion because the prevailing wind and flowing water can easily carry away the topsoil and loses the fertility of the soil.

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Due to gravitational Force the water exerts more pressure at "ground floor"  than at "2nd floor".

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