The coding RNA in a cell at particular time is comprised of A. total mature mRNA
B.whole RNA
C. hnRNA
D.4% of total coding RNA

Yes,

Explanation:

Global issue such as global warming can alter the temperatures, cause seasonal precipitation, cause elevated amounts of carbon dioxide and can cause various ecological disturbances such as flooding which prevents the secondary succession to progress.

For more explanation visit

https://19january2017snapshot.epa.gov/climate-impacts/climate-impacts-forests_.html