Answer:
I am not too sure but maybe A?
Explanation:
Because plants are part of the biosphere and land is part of the geosphere
I am sorry if it is wrong
The correct answer is option D
The main cause of global warming is the green house gases that contributes more towards global warming.
The carbon dioxide produced from the transportation is the main green house gas. Transportation being the major source of carbon dioxide contributes towards global warming.
Reducing the amount of green house gases will help in the reduction of the global warming.
Answer: Option A
The three positions that nations occupy in the world system are core, periphery, and semi-periphery.
Explanation:
World system is a multidisciplinary method to social change and world history which is use stress the system of the world as a unit of social analysis. It is an international system that divide nations of the word according to their labor into core, periphery and semi -periphery. The core have high skill labor and high production cost compare to the others. The core countries dominate and use the periphery countries. The periphery countries also depend on the core countries for capital.
