Atrout population grew from 4 in 1992 to 16 in 1993 and then to 64 in 1994. if it continued to grow exponentially, approximately how many trout were there in 1995?
100
128
256

256

Explanation:

The exponential growth function of population is given by :-

, where A is the initial value ,b is the growth factor and t is the time period.

Since in the exponential growth ,the growth factor is the common ratio of the population in the  consecutive years.

Consider 1992 as the initial year , then A=4

and for 1995 , Time period x=3

Now, the number of trouts in year 1995 will be :-

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.