The history of world agriculture is characterized by long periods of no change interrupted with short periods of major change

Indicate whether this statement is true or false


FALSE

Environmental & Atmospheric Sciences

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Almost half of the world's people speak languages belonging to the ____________ language family.

a. Indo European b. Sino-Tibetan c. Austronesian d. Trans-New Guinea e. Afro-Asiatic-Indo-European

Environmental & Atmospheric Sciences

The number of people who are too young or too old to work compared to the number of people in their productive years is called the

A) social dependence rate. B) productive capacity ratio. C) elderly support ratio. D) infant mortality rate. E) dependency ratio.

Environmental & Atmospheric Sciences

When mechanical work is done on a system, there can be an increase in its

A) thermal energy. B) temperature. C) both A and B D) neither A nor B

Environmental & Atmospheric Sciences

Studies conducted since the 1970s reveal that most tornadoes have winds of less than ____________________ knots

Fill in the blank with correct word.

Environmental & Atmospheric Sciences