Related Questions

The most important chemical catalyst on the planet is chlorophyll, ________ carbon dioxide and water react to form carbohydrates.
A whose presence
B which is present
C presenting
D in the presence of which
The most important chemical catalyst on the planet is chlorophyll,______ carbon dioxide and water react to form carbohydrates.
A whoes presence
B which is present
C presenting
D in the presence of which
The surface of a certain planet reflects 80 percent of the light that strikes it. The clouds around the planet then absorb 40 percent of the reflected light. What percent of the light that strikes the planet is reflected from the surface and passes through the clouds without being absorbed?
A 32%
B 40%
C 48%
D 60%
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
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
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 $$\frac{3}{{11}}$$
Carbon and oxyzen-carbon dioxide. The missing word is:
A compose
B composed of
C are compose
D is compose
2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
A 2 hours
B 2.5 hours
C 3 hours
D 3.5 hours

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