Answer: Would be D. Fe and S have an ionic bond, while S and O have covalent.
Hope that helps.
False, they respire all the time including nighttime
Answer:
B
Explanation:
Biotic factors are alive. Some examples include plants, animals and fungi.
The “a” in front of abiotic will negate the meaning of the word. Therefore, abiotic means not living. Some examples are rocks, water and air.
So, we know that biotic factors are living, and abiotic factors are not living. Therefore, B is correct.
