What's A Mother To Do?Science brain teasers require understanding of the physical or biological world and the laws that govern it.
What's a mother to do? Every day I get heavier and heavier. I put on tons and yet I eat nothing.
How is this possible?
HintWhat comes down comes down.
AnswerEach day nearly 100 tons of dust, rock and space particles enters the Mother Earth's upper atmosphere and settle downwards to the surface or remain suspended in the atmosphere.
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