0 A scientist is studying a volcanic lava flow in Hawaii. The scientist finds sharp volcanic rock
in a large lava field. Which of the following
statements best describes the lava that the
scientist found?
F. The lava is mafic lava that flowed during a
quiet eruption.
G. The lava is the least viscous form of mafic
lava.
H. The rocks are lapilli that were produced
during an explosive eruption.
I. The lava has a high silica content and
flowed during a quiet eruption.

Hich of the following best summarizes the text’s depiction of the ancient indus valley cities (namely harappa and mohenjo-daro)? a. the cities were very plain and simple; the people did not focus on art and architecture, devoting their time instead to agriculture and the bare essentials. b. the cities were adorned, or decorated, with almost overwhelming displays of wealth and artistic architecture. c. the cities were extremely clean, relying on an advanced water and sewer system, though this was mainly constructed for the innermost areas of the cities. d. the cities were clean and peaceful, and they were designed in an extremely organized fashion, using an advanced water and sewer system to keep them this way

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population