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19. This question is based on the following paragraph. The sentences are numbered to help you answer the question.
(1) Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. (2) A greenhouse stays warm because sunlight and heat coming through the glas
roof are mostly trapped. (3) The heat doesn't radiate back into the atmosphere because it's held in by the glass. (4) Something like that happens on Earth. (5) The atmosphere acts like
blanket that keeps the Sun's heat from leaking away into space.
What is the main conclusion you are to draw from this paragraph?
A. The greenhouse effect is changing Earth's atmosphere.
B. The sun's heat can easily leak away out into space.
OC. Greenhouses help most plants to grow more quickly.
O D. Glass ceilings are important to greenhouses.
O Mark for review (Will be highlighted on the review page)
What is the main conclusion you are to draw from this paragraph