Hy are changes in the global carbon cycle important? i. burning reduces available carbon for primary producers and, therefore, primary consumers. ii. deforestation and suburbanization reduce an area's net primary productivity. iii. increasing atmospheric concentrations of carbon dioxide could alter earth's climate. iv. by using fossil fuels we are destroying a nonrenewable resource.

Options  III  and  IV are correct

Explanation:

III. Increasing atmospheric concentrations of carbon dioxide could alter Earth's climate. IV. By using fossil fuels we are destroying a nonrenewable resource.

well the unjest treatment and discrimination did get faced by the idians and soldiers

explanation:

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."