Clouds
What cloud fits this description: High, feathery cloud made of ice crystals.
Cirrus
Which sphere is the closest to Earth's surface?
Troposphere
What cloud fits this description: A cloud that is puffy, white with a flat bottom.
Cumulus
Which is the coldest sphere?
Mesosphere
What cloud fits this description: Cloud is a flat, gray, layered cloud that covers the sky.
Stratus
Which sphere has the ozone layer in it?
Stratosphere
Which cloud is one of the highest?
Cirrus
Which cloud is layered?
Stratus