Answer :
Population distribution is the spread of people across the world, ie where people live.
Answer: Mediterranean Sea is full of resources. The temperate climate provide diverse and abundant agriculture, trade and knowledge exchange and technology throughout the region. Since the waters are relatively smooth, it makes trade easier an cultural exchange.
The correct answer is - d. ash.
Volcanoes let out on the surface and in the air lots of different things, from lava and huge rocks to ashes and toxic gases. The one thing that causes the biggest trouble in air pollution is the ash. When a volcano erupts it lets out huge amounts of ash that can cover up whole regions, and they can have an impact of the global climate by covering the sky with ashes that stop the sun rays reach the Earth. These ashes are a very big pollutant of the air and completely change its structure, for the living creatures air with big amount of ash in it can be lethal.
Answer:
Number 4
Explanation:
Geologists use a variety of techniques to establish absolute age, including radiometric dating, tree rings, ice cores, and annual sedimentary deposits called varves. Radiometric dating is the most useful of these techniques—it is the only technique that can establish the age of objects older than a few thousand years.