By how much did the number of immigrants from Asia increase between 1930 and 1990? by more than 4.5 million
by less than 10,000
by less than 100,000
by more than 5 million

These factors threaten north americas ecosystems

Aletsch glacier is the largest glacier in switzerland and the largest found in the alps, a mountain range which extends from monaco in the east to slovenia in the west. currently, the aletsch glacier is retreating. under what circumstances would this glacier see growth instead of retreat? a decline in plate tectonics across the mountain range annual snowfall that exceeds yearly losses an increase in ablation in the southern valleys a rise in temperatures to that of a mediterranean climate

Where is the world’s shortest commercial runway?