Identify 3 countries in the world with the highest youth dependency percentages along with their % of population aged less than 15 years.

What is the lowest output value approached by the function f(x)=2x−5?

What role did the waterways of europe play in development of europe's economy

Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.