Big data is the answer or data
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 author portrays the character with a few simple traits" would describe a flat character, since "flat" is the opposite of "deep" when it comes to showing different character trains, personality flaws, etc.