You are a botanist working on a species of Lily. You are attempting to measure a certain inherited trait. In order to rule out Environmental Variation, you should keep all of the following factors constant except: A. Temperature
B. Amount of sunlight
C. Amount of water
D. Type of bee carrying the pollen

D. Type of bee carrying the pollen

Explanation:

Remember, Lilies are aquatic plants, so in order to rule out Environmental Variation, that is, differences in environment, we are to make constant all the environmental factors which include the options;

However, the none environmental factor which is the type of bee carrying the pollen  is exempted.

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

it’s lava came from an explosive eruption