Answer:
Family migration as a general concept covers family reunification, family formation, accompanying family members of workers, and the migration of a family unit as a whole. The following are key terms and concepts.
Explanation:
China and India control over one-third of all the world's population.
The three important physical features found along the west coast of South America is the Andes Mountains, Atacama desert, and the Lake Titicaca. Andes Mountain is the highest mountain found outside of Asia and runs along the western side of South America. The Atacama desert is a plateau found west of the Andes Mountains and the driest desert in the world. The Lake Titicaca is deep lake located on the border of Bolivia and Peru.
The mountainous regions could not develop agriculturally as much as fields
D. high and low levels of silica in the different type of lava.
Explanation:
The volcanoes have different types of explosions. Some tend to be highly explosive, some less explosive, some don't have explosions at all, while some have combinations of different eruptions. The reason for this diversity in the eruption types is mostly the composition of the magma, or rather how high is the silica content in it.
Basically, the higher the silica level in the magma the higher the explosiveness, and the lower the silica level the lower the chances of explosiveness. This is the case because the higher amount of silica makes the magma thicker, so the gasses are trapped and they explode, while when the lower silica content makes the magma less thick, so the gasses are not trapped and explosions are lacking.
