The correct answer is - B. It is increasing.
The population in the world has been increasing for quite some time now. The biggest rise in the population was seen in the post World War II period, when the so called ''baby boom'' took place.
Even though in many parts of the world the birthrates have dropped significantly in the past few decades, like Europe, North America, East Asia, Australia, still the population on global scale is growing. This is due to the very high birthrates in Africa, but also because of South America, and the Muslim countries in Asia.
In general, the world's population is growing, but the tempo of growth is becoming smaller and smaller with each year.
The transport of material due to gravity.
Answer:
c) A subduction boundary
Explanation:
The subduction zones occur at places where two plates form a convergent plate boundary, and one of the plates is subducting below the other plate. As one of the plate is moving below the other plate, there's lot of stress and adjustments going in the crust, resulting in numerous cracks all along the plate boundary. The magma from the astenosphere manages to get up and comes out on the surface. Some of the magma will not be able to reach out of the water, while some will be able to, and the ones that manage to get above the water are creating volcanic islands. As this is happening all along the boundary, there will be a chain of lot of volcanic islands, but also volcanoes rising on the land as well, which will create volcanic mountain ranges as well. We can see this perfectly well at the ''Ring of Fire'', as we have lot of volcanic islands, and lot of volcanic mountain ranges in close proximity to the subduction zones.
The study of lakes is called <span>Limnology</span>
