D. Many are primarily deserts.
Explanation:
Many of the islands in South east Asia are not primarily deserts. South east Asia is a region of the world located in the Southern part of China to the East of India and north western part of Australia.
- The region is rife with series of tectonic activities and most Islands here fall on the Ring of fire.
- Many of the Islands here Volcanic Islands rising and towering above the ocean floor.
- The predominant climate here is the luxuriant tropical rainforest with wet and dry seasons all year round.
- None of the Islands are deserts.
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C. The aral sea is known to be so severely damaged due to management that only a little part of it is saved and can be seen nowadays. However, Kazakhstan is doing its best to save the Northern part of the sea. Therefore, the water level of the lake had risen by 12 meters, and fishes are found swimming once again in the sea.
Water is supplied to us in three forms.
Solid, liquid, and gas.
A declining population poses serious labour deficiency problems in an economy.
It also strains the economy as more and more of the population become dependent. They either depends on social security fund or on their relatives.
Population decline also decreases investments in the countries as it diminshes the market for goods and inhibits new ideas.