Well if you mean what does the controlled part of a scientific investigation, it is the part of the investigation that will be your control or your base, untouched, original, data and such.
Answer:
like people they produce waste and exhale carbon causing rise in temperature in the area
The forested regions to the east of the Andes are known as the selva in Ecuador, Peru, and Bolivia.
Global warming is what scientists conclude has caused the massive rise in temperature. Greenhouse gases are in the atmosphere, keeping heat trapped around Earth. The more these gases build up, the warmer or the more significant rise in temperature will take place. Greenhouse gases are released when we use fossil fuels, burn fires, etc. We are using more of these than ever, especially with the world's growing population.
I hope this helps!
~kaikers
