Infiltration is the process that helps to add water to the Earth's groundwater supply. What happens during infiltration?

A. The water is heated by the sun and floats into the air.

B. The water is drawn into the ground by the force of gravity.

C. The water changes from a gas to a liquid.

D. The water moves along the land downhill, due to the force of gravity, to a larger body
of water like a river, lake, or ocean.

B.The water is drawn into the ground by the force of gravity.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.