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3 years ago

What factors influence a region's photosynthetic productivity ?

2 answers:

6 0

Photosynthesis is the process through which living organisms convert environmental carbon dioxide and water into glucose. The glucose is a sugar essential element that fuels life processes.
Region's photosynthetic productivity is influenced by the the availability of nutrients and the amount of solar radiation, or sunlight.
Nutrients as iron, magnesium and sulfur decrease photosynthesis rates., while nitrogen and phosphorus can prevent a plant from metabolizing glucose.

Maurinko [17]3 years ago

3 0

Nutrients and sunlight

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If all the energy from a 103 W light bulb is emitted at 590.0 nm, what is the energy of each photon in Joule? Planck’s constant

sergejj [24]

Answer:

Energy of each photon is given by $0.0335\times 10^{-17}j$

Explanation:

We have given wavelength of light $\lambda =590nm=590\times 10^{-9}m$

Speed of light $c=3\times 10^8m/sec$

Plank's constant $h=6.6\times 10^{-34}j-s$

We know that energy of photon is given by $E=h\nu =\frac{hc}{\lambda }$

So energy is given by

$E=h\nu =\frac{hc}{\lambda }=\frac{6.6\times 10^{-34}\times 3\times 10^8}{590\times 10^{-9}}=0.0335\times 10^{-17}j$

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3 years ago

Which of the following was NOT an observation that supported the original continental drift hypothesis as posed by its originato

Over [174]

Answer:

Option (C)

Explanation:

The continental drift hypothesis refers to the large scale, slow motion of continents over the surface of the large ocean basins and it was discovered by Mr. Alfred Wegener. He contributed some evidence regarding this continental drift hypothesis, such as the matching of the continental margins, finding similar fossils in distant continents, finding similar rock types as well as structures present in them. The movement of glaciers and their changing patterns were also observed to prove this theory.

But, of all the given options, one observation does not support the hypothesis, i.e. the lithosphere showing ductile nature in comparison to the brittle rock behavior in the layer of the asthenosphere.

In the brittle zone, the rocks fractures due to the force acting on it, whereas, in the ductile zone, the rocks tend to flow during the time of deformation.

Thus, the correct answer is option (C).

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3 years ago

In a few sentences, describe what this weather map tells you about the weather.

Sidana [21]

Answer:

it tells us that there is low and high atmospheric pressure

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2 years ago

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Lerok [7]

My aunt does and my uncle

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What 2 advantages and disadvantages did the Native Americans have in each of the regions. The Northeast, The Arctic, The Southea

klemol [59]

Answer:

some disadvanteges the indians would have might include unreliable weapons, small militias and non permenent living areas

Explanation:

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3 years ago