Answer: AIDS
The doctors have been looking for a cure for Acquired Immune Deficiency Syndrome, most widely known as AIDS since 1981. There has been vaccines for polio while other treatments for cancer however, there is way fewer cure for AIDS since then.
Answer:
A. Tropical
Explanation:
Although the climate varies over several environmental factors like: land industrialization, environmental issues, and increased pollution.
Answer:
July
Explanation:
July 4th independence day from England
<span> the commander of the union army is Ulysses S. Grant</span>