Which benefit of ice on the surface of a lake is most to fish? a. it shades the fish from the heating effects of the sun b. it insulates the fish from the cold air above c. it them stay cold d. it prevents them from swimming in the winter

B. It insulates the fish from the cold air above

Just like an igloo

Option B, It insulates the fish from the cold air above

Explanation:

Water bodies in cold climatic regions have frozen ice at their top. Basically,  this ice (frozen water) entraps air pockets inside it which acts like an insulator and prevent the aquatic plants and animals from the extreme cold climate. Thus, ice on the surface of any water body protects the species beneath the ice layer from extreme cold climatic conditions. For example Michigan lakes and ponds  get freeze during cold climatic condition.

Option B is correct

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.

i am sorry but i need more information and a picture.