Question

photosynthetic algae would likely produce the most oxygen under which of the following conditions? at midnight a summer evening a cold winter morning a hot summer day at high noon

Explanation:

Photosynthesis requires light. High - noon on a hot summer day has the most intense light among the options, which promotes the most photosynthesis and thus the most oxygen production by photosynthetic algae.

Answer:

a hot summer day at high noon