Answer:
b.burning of fossil fuels
Explanation:
Burning fossil fuels has been considered controversial since it produces tons and tons of CO2 and CO2 is considered a green house gas which is contributing to climate change.
Photosynthesis and planting trees actually sucks Carbon dioxide out of environment. Perspiration doesn't produce CO2.
Answer:
Intramuscular
Explanation:
Intramuscular is a method of administering injection directly into the muscles for effective functioning.
Long acting penicillin are administered intramuscularly because of penicillin sensitive microorganisms that are subsceptible to low serum levels which is associated with penicillin dosage in the body and penicillin Has low level of solubility therefore it is slowly released into the muscles sites.
I think it’s photosynthesis not 100% sure
I believe flagellates would be classified as heterotrophic protists With flagella. It's an animal-like protist.
All except number 2. Hope this helps!