On what did Thomas Malthus work?

The capacity of an environment to support a limited number of individuals is known as:

When resources in the habitat become progressively limited,the growth pattern observed is.......?

In a growing population of a country,

The capacity of the environment in which a species can get maximum nutrition is called:

When an animal population becomes too large for its food source or habitat,its members starve and die,but humans escape this disaster by: