John believes the water plant Elodea will produce more oxygen when placed closer to a light source. He places four Elodea plants of the same height at varying distances from a lamp:1 meter, 2 meters, 3 meters, and 4 meters. The plants are in identical aquariums with a beaker placed over each plant. The oxygen content inside the beaker is measured after each plant sits for 8 hours. Which question best describes Johns experiment?

RESEARCH AND SCIENTIFIC METHODS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

John believes the water plant Elodea will produce more oxygen when placed closer to a light source. He places four Elodea plants of the same height at varying distances from a lamp:1 meter, 2 meters, 3 meters, and 4 meters. The plants are in identical aquariums with a beaker placed over each plant. The oxygen content inside the beaker is measured after each plant sits for 8 hours. Which question best describes John’s experiment?

A	Does the amount of oxygen affect the amount of light needed by the plant?
B	Does a plant produce more oxygen when it is placed closer to a light source?
C	How does the type of plant affect the oxygen produced when placed by a lamp?
D	Will the light affect how much the Elodea plant grows when placed in the light?

Explanation:

There is 1 question to complete.

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