Answer:
Migration boosts the working-age population. Migrants arrive with skills and contribute to human capital development of receiving countries. Migrants also contribute to technological progress. Understanding these impacts is important if our societies are to usefully debate the role of migration
Answer:
➢ The economy of Ladakh is based on <u>small farms and herding</u>. The economy is a stable and self-reliant rural economy. Crops like barley, wheat, and peas are grown here. Keeping livestock, especially, yak, cows, sheep and goats, is a major part of pastoral farming.

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<span>Mexicans have access to first-world infrastructure and high-velocity Internet speeds in Mexico City, in pockets along the border with Texas, and in business centers like Monterrey and Guadalajara, but the vast majority of Mexicans live beyond the reach of the digital age. About 82 million people — 70 percent of Mexicans — have no access to a computer or the Internet, according to the Mexican Internet Association, or AMIPCI.</span>
Explanation:
Earthquakes shake and volcanoes erupt. Sections of the crust are on the move. Mountains push up and wear down. These and many other processes contribute to the rock cycle, which makes and changes rocks on or below the Earth's surface.
The convection cell in the mantle is essentially the self-sustaining, constant movement of the magma inside this layer. This works in a very simple way. The hotter magma is less dense, so it is pushed upward toward the crust above it, while the cooler magma is denser, and it moves downward where it gets hotter, and the process goes on and one. The magma that goes upward toward the crust, manages to push through the thinner and cracked crust between the plates that move away from each other, thus on the divergent plate boundaries. As the magma penetrates through the crust it manages to get to the ocean floor, thus causing volcanic activity. This magma cools of very quickly and creates new crust. Because the magma constantly rises up and creates new crust, the crust piles up and forms an underwater mountain of volcanic origin that constantly has volcanic activity because of the rising magma. This volcanic underwater mountain range is called mid-ocean ridge.