Thomas malthus's contribution to natural selection is the:
a.
binomial taxonomic system of naming species.
b.
theory that the earth's old age is based on geologic evidence resulting from cataclysmic events.
c.
theory that environmental resources increase to population pressures.
d.
observation that an abundance of food would allow a population to increase geometrically and indefinitely, but there simply is not enough food, so populations are limited by food supply.

The good choice is:

Observation that an abundance of food would allow a population to increase geometrically and indefinitely, but there simply is not enough food, so populations are limited by food supply.

Explanation:

sorry i do not know this

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation: