Answer:
The answer is A.
Explanation:
To test if the selenium from the mine has an effect on the fish living in the lake which i assume is close to the mine, testing the tissue of the fish from that lake and comparing it to the selenium levels of the fish from a nearby lake would be a testable hypothesis because there is a comparable aspect and there should be a difference in the numbers between the fish from the two lakes because of their distance to the mine.
I hope this answer helps.
The answer to your question is D. Heat Transfer
Answer:
A: Oil
Explanation:
Chemo synthesis is the biological conversion of one or more carbon-containing molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (e.g., hydrogen gas, hydrogen sulfide) or methane as a source of energy.
Bacteria living on the sea floor or within animals use energy stored in the chemical bonds of hydrogen sulfide and methane to make glucose from water and carbon dioxide.
Chemo synthetic bacteria are organisms that use inorganic molecules as a source of energy and convert them into organic substances. Chemo synthetic bacteria, unlike plants, obtain their energy from the oxidation.
So Oil is not a possible source of energy for Chemo synthesis.
It stays the same. There arent factors that are changing the environment like humans cutting down trees.
