How many species have gone extinct in the last 100 years

How does cooperative federalism work in the united states? a. state and federal governments have different and overlapping responsibilities b. branches of the federal government can check one another's power. c. when amending the constitution, citizens vote directly. d. bills passing the house of representatives must also pass the senate.

To with the food shortage in haiti, how should agricultural assistance programs shift their focus

Why was tacoma initially chosen as the place for the northern pacific railroad final station instead of seattle? a. the cascades cut seattle off from the interior of the region. b. residents in tacoma offered many generous gifts to the railroad company. c. there were more people living in tacoma at the time. d. tacoma had many natural resources that seattle did not have.