having insufficient income to provide
He called his royal math and science teachers his favorite subjects. There are a lot of ordinary people who love science and math subject because it gives them thrill when solving problems which use plenty of formulas to remember. So the answer in this question is, his favorite subject.
Answer: The 15th Amendment
Explanation:
The 15th Amendment, granting African-American men the right to vote, was adopted into the U.S. Constitution in 1870. Despite the amendment, by the late 1870s discriminatory practices were used to prevent African Americans from exercising their right to vote, especially in the South.
The more Carbon Dioxide in the air, the more it increases the GREENHOUSE EFFECT.