Answer: Overpopulation
Explanation:
Overpopulation is a phenomena in which population of a concerned region raises explicitly in large numbers. The two main reasons for overpopulation in India are higher birth rate and lower death rate. India is facing many consequences due to overpopulation like unemployment, poverty, food insecurity, extinction of plant and animal species, loss of ecosystems, deforestation, water and air pollution and others.
A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph.
It is D because Australia is having soil and land and there are water on land and Antarctica is just covered up in ice.