Answer: An orthophoto is an undistorted aerial photograph with a completely uniform scale that allows it to function as a map
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Oceanic Trench or Deep Sea Channel, it is a narrow, long and having a sharp inclination depression in the lowermost deep-sea in which happen the extreme oceanic depths. They normally form in places where once the structure of the earth's crust plate <span>is forced below the edge of</span> another. While Abbysal plain is a beneath the surface of the water plain on the deep ocean floor, typically found at depths approximately 3,000 meters and 6,000 meters. It is in a horizontal position largely between in a mid-ocean ridge and a foot of a continental rise. Almost 50% of the Earth’s surface was sheltered by Abbysal Plains. They are the smoothest and flattest and not so discovered areas on Earth.
Answer:
Observable effects of climate change on water resources in Africa include: flooding, drought, change in distribution of rainfall, drying-up of rivers, melting of glaciers and the receding of bodies of water. Entire economies suffer when the water levels of Africa's huge rivers drop.
Solution :
a). Let x denotes ACT scores.
ACT scores = 
Mean, 
Sample variance, 
= 11
b). To test whether or not variance of ACT scores of population (say 
) of the UTC students is significantly more than 8.
Consider the hypothesis :
vs 
It is a right tailed test and α = 0.05
We have
So test statics is
= 8.25
Since our 
and it falls in a acceptation region, hence we fail to reject 
and conclude that variance is not greater than 8 significantly.
