Why are extreme tidal currents often observed at fjord outlets?
a. they are caused by eskers that accelerate tidal forces.
b. they are caused by alluvial fans that disperse sediments.
c. they are caused by moraines that restrict flow at the outlets.
d. they are caused by aretes that accelerate flow at the outlets.

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.