Fossil fuel are cheap and easy to use, but pollute the earth so no we shouldn't use it, and we should work on greener sources of energy that can power a nation! (Still not there yet though.)
Answer:
time at 0°=7am
longitude =75°
1°=4minutes
75°=75×4
300/60 (minutes should be converted into hours)
=5 hours
Therefore, time at 75° west is 7+5=12hours or 12 pm
economic activities such as industrialization and manufacturing have caused and put a lot of smog into our air which then makes it way back down to the bottom of the ocean or ground
River System........................
