The tropical rainforests have the warmest temperatures
I believe its the Rhine-Main-Danube Canal. Hope that helps!
You didn't put any answer choices but it's to stop the ozone layer from going away.
It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.
