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gogolik [260]
3 years ago
7

Humans could try to pollinate food crops by hand, but this would be expensive and time consuming. Natural pollinators, like bees

, will do this work for free. Pollination is an example of what type of ecosystem service?
Select one:

A. Supporting Services

B. Regulating Services

C. Provisioning Services

D. Cultural Services
Chemistry
1 answer:
malfutka [58]3 years ago
3 0

B. Regulating Services

Explanation:

Pollination is an example of regulating ecosystem service.

  • Ecosystem services are the direct and indirect contribution to human life.
  • Humans relies on the ecosystem for a wide range of provisions.
  • These services are categorized into different forms.
  • Regulating services are the values derived from controlling the ecosystem.
  • Pollination is one of such things.
  • Plants are pollinated by insects. This helps to continue and sustain life.
  • Pollination helps to fertilize plants and ensures reproduction.

learn more:

Ecosystem brainly.com/question/7846024

#learnwithBrainly

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Answer : The partial pressure of the CO_2 in the tank in psia is, 32.6 psia.

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As we are given 75 % CO_2 and 25 % N_2 in terms of volume.

First we have to calculate the moles of CO_2 and N_2.

\text{Moles of }CO_2=\frac{\text{Volume of }CO_2}{\text{Volume at STP}}=\frac{75}{22.4}=3.35mole

\text{Moles of }N_2=\frac{\text{Volume of }N_2}{\text{Volume at STP}}=\frac{25}{22.4}=1.12mole

Now we have to calculate the mole fraction of CO_2.

\text{Mole fraction of }CO_2=\frac{\text{Moles of }CO_2}{\text{Moles of }CO_2+\text{Moles of }N_2}

\text{Mole fraction of }CO_2=\frac{3.35}{3.35+1.12}=0.75

Now we have to calculate the partial pressure of the CO_2 gas.

\text{Partial pressure of }CO_2=\text{Mole fraction of }CO_2\times \text{Total pressure of gas}

\text{Partial pressure of }CO_2=0.75mole\times 300Kpa=225Kpa=225Kpa\times \frac{0.145\text{ psia}}{1Kpa}=32.625\text{ psia}

conversion used : (1 Kpa = 0.145 psia)

Therefore, the partial pressure of the CO_2 in the tank in psia is, 32.6 psia.

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3 years ago
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