The atmospheric concentrations of CO2 during Earth's past have always been changing, sometimes slowly, sometimes abruptly. The changes continue to the present day, and will continue in the future. The reasons for the oscillations in the CO2 levels are numerous, but while in the past they have been exclusively from natural causes, in modern times it is also the humans that got involved in it. The Cretaceous period had 1000 ppm of CO2, while the Eocene had 560 ppm of CO2. In the present, the CO2 concentrations are 405 ppm, thus significantly lower than the Cretaceous and Eocene. What can be learned from these two periods though is that such high concentrations of CO2 result in much warmer global climates, with ice sheets lacking, and the temperatures being much more equalized across the latitudes. If the current trend continues, there is every chance that our planet will experience such changes in the near future.
I got the Chinese as my answer. I had to look it up to find an answer. I hope it helps
answer:
The rock is more dense.
Explanation:
If you look at the rock cycle, you'll see when sedimentary rock goes under extreme heat and pressure, it becomes metamorphic rock. So the metamorhpic rock is so much more dense that the rock is like a sedimentary times ten! I mention it's more dense because they're is more rock to erode away. Making it much harder to wear away the metamorphic rock.
Answer:
C. Border area
Explanation:
Because or the semitropical climate at the border areas like Texas cultivation of citrus and vegetables is easy. The valley of Rio grande and the Winter garden in South Texas are the major producers of these two crops
