The ocean absorbs around 30% of carbon dioxide (CO2) released to the atmosphere as a result of human activities. As CO2 dissolves in seawater, it forms carbonic acid, decreasing the ocean’s pH. This is called ocean acidification. The acidity of the ocean has increased by 26% since the beginning of the industrial era. In at least 2 pages , define anthropogenic activities, describe how such activities can have a negative effect on ocean acidification and climate change, and provide some solutions to overcome these issues.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

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.