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.
Over 2/3 of the argicultural land is used
Answer:
The answer is "The Last choice".
Explanation:
She may arrange several ideas on even a subject in an overview. It is an outline that allows you not only to meet your goals but to also prepare for certain aspects of their reading. Its aim of this overview is to help organize a document by checking if and how ideas interlink or whether certain items need further support, that's why the last choice is correct.
