What percent of the earth is covered by water?
a) 20%
b) 50%
c) 70%
d) 85%

i think its c or d what do you think?

Seventy-one percent of the Earth is covered with water, which makes it looks like a blue ball floating around in space. The clouds swirl around Earth, blocking out parts of the land and sea.

There is no option seventy-one percent so the closest option is "C" seventy percent.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

,

chris