Which fact supports the following conclusion? Agricultural sciences have a global impact.
O The demand for American meat products is increasing.
O Genetic modification contributes to health internationally.
O Grains are in higher demand than livestock worldwide.
The world's population has risen to seven billion people.

heat a spark and oxygen

it's c. (to reduce the greenhouse effect/carbon gasses)

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )