- Answer the following:
A. Explain the different steps involved in the secondary treatment of sewage.
B. Microbes can be used to decrease the use of chemical fertilizers. Explain.
C. List the changes that occur when an ovule matures into a seed.
D. Alien species are highly invasive and are a threat to indigenous species. Give examples.
Answer:A
- Answer the following:
A. Explain the different steps involved in the secondary treatment of sewage. B. Microbes can be used to decrease the use of chemical fertilizers. Explain. C. List the changes that occur when an ovule matures into a seed. D. Alien species are highly invasive and are a threat to indigenous species. Give examples.