The answer is - 30.
In the last 800,000 years, in a span of 1,000 years it never happened that the CO2 go upwards or downwards for more than 30 ppm. It has always been a slow process in this period and as much as the jumps were big, that never surpassed this number. On the other hand we are witnessing that this has happened nowadays in just 13 years, and that is very concerning because such rapid changes of CO2 in the atmosphere brings rapid changes in the climate and it will be a global catastrophe if this trend continues.
Answer:
Bordered by Jordan to the east and by Israel and Palestine to the west, the Dead Sea is a landlocked lake rather than a true sea, and is recognized as one of the saltiest bodies of water on Earth. Its name is well earned — no fish, birds or plants can survive in its high-saline environment
Sputnik I and Sputnik II provided a D) Information about Earth's atmosphere.
Answer: The answer is Hot spots cause volcanoes
Explanation: :}