The complete subject would be
Lisa’s best friend Sue
Answer:
When the sun shines on earth, the sunlight warms up the earth, in the way that sunlight would warm up a greenhouse. At night, when there is no sunlight, the earth cools down, just like a greenhouse. When cooling down, the earth keeps some of the warmth trapped in the atmosphere- just like how a greenhouse would.
The answer is the Sahara Desert.
Global life expectancy is the number of years people live on average in the entire world i believe