Answer:
Slave trade was abolished in Britain quite early on but there were other countries that carried on in the slave trade. Between the 15th and the 18th century, millions of slaves were transported to north and south America. Over 1.5 million of these died on the journey.
Answer:
Renewal of Wetlands. Floods contribute to the health of ecologically important wetland areas. ...
Returning Nutrients to Soil. Floods distribute and deposit river sediments over large areas of land. ...
Preventing Erosion and Maintaining Land Mass Elevation. ...
Recharge and Replenish Ground Water.
The second one is A, amount of time
The correct answer is letter A. Biosphere is not directly studied in one of the main branches of Earth/Space science. This is a branch of science that focuses on living organisms that are living in different populations or communities all over Earth. The other three choices directly study these branches of Sciences.