The answer is migrant workers. Hope this helps:)
Answer:
I'm so sorry I'm late! I didn't see you question until today. I still hope this will help you.
Explanation:
MLK because more African-Americans followed him as well as he didn't use violence like Malcom X. Also, as we all know today, MLK is a lot more famous for what he did rather than Malcom X, as we have a whole day given to MLK!
The earth gets most of its energy from the radiogenic heat from the radioactive decay of isotopes
