<span>Selection (a) is the best answer. Rainforests, through their ecosystems, are able to mitigate the effects of prolonged rain events and droughts that could take place in the areas in which they reside. The expansive canopies and tall trees hold in the moisture that does fall to make sure that the areas within them receive sufficient moisture for growth.</span>
I know jobs for one, over population maybe, and because they are worried that dangerous people could be entering into the country with intention to harm. (unless this is a "only 3 right answer" kind of thing)
The correct answer is letter D. an economy based on trade. The people who migrated to Melanesia developed <span>an economy based on trade. Before the time of currency was used, people back then do trading with their property they own if they want to have something. It's like the same as the barter system or the barter economy.</span>
Well first i need some choices but i would have to say
<span>C ) A surveyor provides close readings of land elevations.</span>
Wladimir Köppen was a German meteorologist, climatologist and botanist. He elaborated the Köppen climate classification system, which is still commonly used today to group climates into similar types (albeit with modifications). See also Climate.