Chapter+3+Questions

__Chapter 3: Ecosystems: What Are They and How Do They Work?__ 1. The animals have diseases and spread them to the people when they are eaten. The sick people then spread the diseases to others who in turn die from the illness.

2.Gross and net primary productivity- Mining, livestock, coal reserves, and oil.

3. Herbivores: Antelopes, elephants, gazelles, ostrich, and sheep. Carnivores: Lions Omnivores: Monkeys, hyenas, sand swimmers, addax, wild dogs, otters, and Manatee.

4. The Nigerian National Petroleum Corporation spilled 1.89 million barrels of petroleum in the Niger Delta between 1976 and 1996.

5.They study how the fish in the water are affected by the pollution caused by oil spills. They test the river water to check for harmful chemicals in it.