Answer:
The statement is not true.
Explanation:
Global warming is a process that is occurring naturally, with or without human activity. This is not to say that humans don't have an impact, on contrary, the human activities have managed to add enough greenhouse gases in the atmosphere so that the process is speeded up, and that becomes very alarming because the changes are much faster.
Very often, the finger is pointed to the most developed countries in the world when it comes to greenhouse gas emissions like they are the only ones that contribute to it. This is far from true though. All of the well-developed countries, except for the US, have been investing heavily in environmentally friendly energy sources and have had a decrease in greenhouse emissions. On the other hand, countries like China, India, Indonesia, Pakistan, Nigeria, are all among the top polluters when it comes to greenhouse gases emissions. Now to be fair, the countries that are now well developed did a lot of harm in the past while they were developing, so it is hard to criticize the developing countries for wanting to become richer except if they are helped in sorting out the issue.
Sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by groundwater circulating through them. As the rock dissolves, spaces and caverns develop underground.
Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids. Drought, along with resulting high groundwater withdrawals, can make conditions favorable for sinkholes to form.
uplift-weathering-erosion-subsidence
The USA is the country that has the largest number of climates than any other country or we can also say that the US has great climatic diversity. Following are the regions for the climate changes in the US:
1. Northwest Pacific.
2. Midwest.
3. Northeast.
4. Mid/South Pacific.
5. Southwest; the hottest region of the United States
6. Southeast; hot and dry during the summer but mild during the winter.
These 6 climatic regional variation shows that the US is very diverse with respect to the climatic changes.
