Weather is easily predicted occurs over a long period has a local impact has a global impact

What id the primary human cause of the global warming a. storage of nuclear fuel rods b. burning of fossil fuels c. building of high-density housing d. violent conflicts over natural resources

Irelanda. populationb. square mileagec. average population density per square mile

Monk's mound in cahokia is an enormous earthwork very near to the mississippi river. what do archaeologists believe it was used for?