D. Estuaries
Estuaries are a place where fresh and salt water mix.
Answer:
Abiotic factors such as latitude and temperature can impact biotic aspects of food web structure like the number of species, the number of links, as well as the proportion of basal or top species. These biotics factors can in turn influence network-structural aspects like connectance, omnivory levels or trophic level. In this way, plants make, or produce, the beginnings of most of the food energy on Earth. This is why plants are called producers. They use some of the food energy to carry out their own functions, and store the rest of the energy in their leaves, stems, roots and other parts.
Explanation:
D. Visible light . Is the correct answer I hope this helps:)
Answer:
Option B, 
hectoliters
Explanation:
As we know that in one hectoliter there are ten decaliters
hectoliter 
decaliters
or
decaliters 
hectoliter
For converting any small unit into a large unit it is to be divided by number of units in large unit.
Thus,
decaliters in terms of hectoliter is equal to
Hence, option B is correct
It is the variable being controlled/changed to see if there are any effects on the dependent variable (the thing getting tested/measured)
