The Continental crust is A. Composed mostly about basalt
B. Less than 10 km thick
C. Formed from slowly cooled lava
D. Made of rock 50 million years old

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

Crisis in rivalries between the serbs, croatians and muslims has been going on for centuries and only intensified during the 1990s when non-communist rulers were elected

Why is terracing used in southeast asian agriculture?