scientist generally agree that earth is getting warmer due to what call the green house effectt. a greenhouse used for plant stay warm because sunlightand heat come through the glass roof are mostly trapped by the grass something like that happen on earth. the atmosphere act like a blanket that keep the sun heat from leaking away into space a-bais b-cause c-illustration d-effect

3 answers

There is no question here.

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in the sentence ,the phrase what called the greenhouse effect present a/an
The problem here is your terribly inaccurate typing:
scientist generally agree that earth is getting warmer due to what call the green house effectt. a greenhouse used for plant stay warm because sunlightand heat come through the glass roof are mostly trapped by the grass something like that happen on earth. the atmosphere act like a blanket that keep the sun heat from leaking away into space

If you'll put capitals, punctuation, and spaces in the right places, it might be clearer. You should also double-check this against the original. Parts of it don't make sense.