1---Which of the following statements is true (only one): a. Renewable energy re
ID: 1317338 • Letter: 1
Question
1---Which of the following statements is true (only one):
a.
Renewable energy resources now make up more than half of US energy consumption.
b.
Oil use has expanded more than any other fuel since 1940.
c.
We reached the point last year where we imported no oil.
d.
Electricity use has actually fallen since 1975.
2---Which of the following is a non-renewable resource?
a.
uranium
b.
water
c.
biomass
d.
wind
e.
radiant solar
3---If the growth rate of the number of solar collectors is 7% per year, what is the time for the number of solar collectors to double?
a.
2 years
b.
7 years
c.
10 years
d.
70 years
e.
1000 years
4---If the growth rate of the number of solar collectors is 7% per year, then 1000 units in use in 2010 will grow to _______ units by the year 2040.
a.
1200
b.
2000
c.
4000
d.
8000
e.
20,000
a.
Renewable energy resources now make up more than half of US energy consumption.
b.
Oil use has expanded more than any other fuel since 1940.
c.
We reached the point last year where we imported no oil.
d.
Electricity use has actually fallen since 1975.
Explanation / Answer
1)
The president's New Energy For America plan calls for a federal investment of $150 billion over the next decade to catalyze private efforts to build a clean energy future. Specifically, the plan calls for renewable energy to supply 10% of the nation's electricity by 2012
. Oil use has expanded more than any other fuel since 1940.
B is correct answer
2)
Renewable energy resources are natural sources
these sources are solar ,wind,tidal,geothermal,ocean,etc
we also call these sources are non conventional sources
non-renewable resources are artificial sources
examples nuclear,diesel,water,coal,oil
these sources are called conventional sources
A is answer
4)
ANSWER IS D
FOR THIS IT IS EASY TO CALUCULATE
USE FORMULA
(1+R/100)^n*no of units 1000 units in use in 2010 will grow to units by the year 2040.
R=7 PERCENT
n=30 YEARS
NO OF UNITS 1000
we will get aproximately 7.61*1000
=8000
3)
IN THIS PROBLEM it will take aproximately 2 years
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