The area of a volcano where the ash and lava will actually leave the pipe a. magma chamber
b. vent
с. pipe
d. crater

Because they are located downstream from turkey on the tigris and euphrates rivers, these two nations are anticipating a reduction in water supply, as a result of 22 dams being built by the southeastern anatolia project. the two nations are a) iraq and iran. b) iraq and syria. c) iran and syria. d) saudi arabia and yemen.

Characteristics of substistence farming include all of the following except a. the use of pesticidesb. shifting cultivation c. farmers that stay in one placed. the lack of tractors and machinery

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling