Answer:
1. Litosphere: made of large plates that move.
2. Asthenosphere: plastic portion of the upper mantle of the earth.
3. Outer core: very dense liquid of iron and sulfur.
4. Crust: thin, rigid surface of Earth.
5. Inner core: made of solid iron.
6. Upper mantle: layer that includes the asthenosphere.
7. Lower mantle: layer just outside of the outer core.
The correct answer is B. False
Explanation:
Russia is considered the largest country in the world, located in both Asia and Europe. In terms of population, most of the Russian population is now located in the western zone of the country or in Europe, which includes cities such as Moscow or St. Petersburg. Despite this, since the 19th century and especially during the Soviet Union period there were migrations of Russians eastward or towards the Pacific coastal zone, which led to the creation of Russian settlements in new zones.
However, in the last decades, this migration pattern has decreased and settlements in the east are still small in comparison to those of the west. In this context, the eastward migration has not been a huge phenomenon since 1991, and even if there is still migration and the government promotes this, it has not led to a lack of accommodations or restrictions, which makes the statement false.
Answer:
A light-year is a unit of distance.
Explanation:
Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers.
Answer:
Most beaches get their sand from rocks on land. Over time, rain, ice, wind, heat, cold, and even plants and animals break rock into smaller pieces. This weathering may begin with large boulders that break into smaller rocks. Water running through cracks erodes the rock.
