Question

Which of the following hypotheses was the student most likely testing?

1) Algae cannot survive without water.
2) Algae cannot survive without bromthymol blue.
3) Algae will not absorb carbon dioxide unless exposed to water.
4) Algae will not absorb carbon dioxide when exposed to sunlight.

Answer 1

The student is most likely testing the hypothesis: Algae cannot survive without water.

Step-by-step explanation:

The student is most likely testing the hypothesis: Algae cannot survive without water. This hypothesis is supported by the fact that water is essential for the survival of algae as it is needed for various metabolic processes, including photosynthesis. Without water, algae would not be able to carry out these processes and would eventually die.