Answer:
Gases that lead to air pollution include carbon, nitrogen and sulfur oxides. Explanation:
The answer is the last one: amoebas, yeasts, hydras, and ferns
It would be “c” ; nitrogen fixation
Chorionic Villus Sampling. Definition: CVS is a test where the doctor collects a tiny piece of the placenta, called chorionic villus, which is then tested to check for chromosomal or genetic disorders in the baby.
