3. which of the following land biomes is correctly matched to its characteristic abiotic factors?
a.) boreal forest—hot, wet, humid
b.) grassland—dry, hot days, cold nights
c.) deciduous forest—moderate temperatures and rainfall
d.) desert—warm, wet, poor soil

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?