Wastes that usually are flushed away in water are A. garbage
B. litter
C. pesticides
D. sewage​

D. Sewage

Explanation:

This might be soapy water from baths and showers, or water left over from washing dishes and clothes. Together, all of these wastes are called “sewage”.Sewage is made up of the wastewater from residences and institutions, carrying bodily wastes (primarily feces and urine), washing water, food preparation wastes, laundry wastes, and other waste products of normal living. This is classified as sewage or domestic wastewater.

Infections are caused by germs that enter the body, multiply, and cause harm or illness.

Explanation: The main types of germs that can cause infections are Bacteria and Viruses.