it might be problem for us to provide the r ight amount of and can also cause more people to be homeless.
Convection currents form in atmosphere and freshwater lake. Convection currents occur when there is difference in temperature in both substances (eg. fluids). When there is a difference in temperature, the hot substance rises and the colder one sinks. The flow then will be form a hotter to the colder region.
Nepal, containing mount Everest, has been shown to have the largest mountain.
A layer or a group of closely-packed layers containing similar
fossils of similar age is called a stratum.
If you find, say, a high stratum, a low stratum, and a stratum
in the middle, then you've found three different strata.
