The main sources are humans which is why it is stated that the global warming is man made. The levels have increased beyond all measure, increasing since the 1950s by a 100 CO2 parts per million, and it keeps increasing by 2ppm on a yearly basis. The statistics from the industrial revolution era are not much different and show how much we've increased the CO2 in modern times.
Answer:
A car driving down a hill
Explanation:
The correct answer to this question is a car driving down a ill because the car is bigger (mass) and faster (speed). It has a bigger mass and a faster speed. So A is the correct answer for this question.
Answer: A car driving down a hill
<em><u>Hope this helps.</u></em>
It's plate tectonics, Earthquakes can be cause by ...
Destructive boundaries (where an oceanic plate goes under a continental plate which causes pressure to build up by friction, and when is released, causes an earthquake)
Or Conservative boundaries where 2 plates rub against each other causing pressure to build up and be released as an earthquake.
Volcanos can be made by...
constructive plate boundaries where 2 plates pull away from each other, leaving large cracks in the earth for magma to erupt.
As well as...
Hotspots which are on the plate itself not a boundary.
Well first, cons
1.) We can't forecast the timing, so that's a biggie. The prospects of forecasting the timing for earthquakes is quite dim at the moment and not in the foreseable future.
2.)Unless you predict earthquakes 100% of the time then improper forecasting can actually result in fatalities and lifeloss.
3.)If we could predict earthquakes, there would be some huge societal implications. For instance Hurricane Katrina was predicted several days out but that didn't result in a wholly successful evacuation of New Orleans which was biased against the poor.
4.)Accurate forecasting would not change the need for preparedness and good building codes. The ground is still going to shake, buildings still need to resist lateral seismic forces, people still need to be prepared for not having gas, water, telecom, electricity, for a certain amount of time.
And pros,
It would relieve some peoples anxiety about "when the big one" is going to hit. But then that would turn into "how big is the big one" anxiety.
The questions you ask can be considered similar to "what are the pros and cons of forecasting when each of us will die". It doesn't change the fact, just what and how we worry about it.
