LEDC means that a country is a developing country (as opposed to a developed country). This distinction is connected to the Brandt line which divides the world into developed and developing country, and India is south of this line (=LEDC, less developed country). Some reasons for this is malnutrition, high child mortality and short life expectancy.
Answer would be B. Earthquakes happen most of the time when a volcano is about to erupt.
The level of the oceans' surface is known as the sea level. Sea level is also used to measure the height of certain cities. For example, Big Bear, CA is <span> 6,750 feet above sea level.</span>
