Why do the plant closes stomata when it does NOT need carbon dioxide for photosynthesis?

Read the paragraph and answer the question-photosynthesis is a process in which radiant energy from sun is stored as chemical energy , which in turn is used to decompose carbon dioxide and water. The product of their decomposition are recombined into a new compound which successively builds, up into more and more complex organic substances like sugars, starches and cellulose that comprise the plant.The word stored in the paragraph is closest in morning to

A

specified

B

retained

C

converted

D

discovered

Plants are efficient at acquiring carbon than are fungi , in the form of carbon dioxide, and converting it to sugars.

A

at

B

on

C

more

D

energy

Choose the correct option to replace the quotation part of each sentence. 'Plants are more efficient at acquiring carbon than are fungi', in the form of carbon dioxide, and converting it to energy-rich sugars.

A

Plants are more efficient at acquiring carbon than are fungo

B

Plants are more efficient at acquiring carbon than fungi

C

Plants are more efficient than fungi at acquiring carbon

D

Plants, more efficient than fungi at acquiring carbon

Carbon and oxyzen-carbon dioxide. The missing word is:

A

compose

B

composed of

C

are compose

D

is compose

One kg of carbon produces ________ kg of carbon dioxide.

A

$$\frac{3}{7}$$

B

$$\frac{{11}}{7}$$

C

$$\frac{{11}}{3}$$

D

$$\frac{4}{{11}}$$

One kg of carbon produces __________ kg of carbon dioxide.

A

$$\frac{3}{7}$$

B

$$\frac{7}{3}$$

C

$$\frac{{11}}{3}$$

D

$$\frac{3}{{11}}$$

The word 'ameliorating' in line 4 is closes in meaning to-

A

improving

B

worsening

C

increasing

D

distingushing

The word "defying" is closes meaning to _____

A

disregarding

B

upholding

C

altering

D

defending

The closes meaning of the underlined word animistic as it is used in the passage , is ___

A

the irrational belief in supernatural beings

B

the beliefs that animals and plants have souls

C

the beliefs that animals are gods

D

the primitive belief that people can be incarnated as animals

The node voltage at the top of the til resistor is closes to ___________

A

collector supply voltage

B

zero

C

emitter supply voltage

D

tail current times base resistance

Why do the plant closes stomata when it does NOT need carbon dioxide for photosynthesis?

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