There's been a lot of bad news for polar bears recently. In 2007, for example, scientists reported that if global warming continues unabated, the population could drop two-thirds by 2050.
there should be an image or something?
<span>It was the culmination of research in the 1930s and early 1940s at the Rockefeller Institute for Medical Research to purify and characterize the "transforming principle" responsible for the transformation phenomenon first described in Griffith's experiment of 1928: killed Streptococcus pneumoniae of the virulent strain type III-S, when injected along with living but non-virulent type II-R pneumococci, resulted in a deadly infection of type III-S pneumococci.</span>
Natural disasters weaken a community's social infrastructure because
D. Natural disasters can cause billions of dollars in property damage<span>.
The social infrastructure of a community includes social assets such as schools, hospitals, prisons and community housing. Such places are damaged in natural disaster, adversely affecting the community.</span>
