What are the three R’s of keeping the Earth clean?
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- How do sailors get their clothes clean? [see_solution] They throw them overboard and they wash ashor
- What is black when it is clean and white when it is dirty? [see_solution] A blackboard.
- What's black when it's clean and white when it's dirty? [see_solution] A blackboard.
- What is black when it is clean and white when it is dirty? [see_solution] A blackboard.
- A grandfather has a broken grandfather clock that is off by a minute every hour (too fast). He figu
- It is lighter than itself; it is very polluted but it looks clean. You can put your whole body in it
- What is as ancient as the earth but new every month? [see_solution] The moon.
- What makes up about 20% of the Earth's surface? [see_solution] Desert
- Scientists are trying to figure out what is between Heaven and Earth.What is it? [see_solution] The
- What constantly wears away the Earth and changes its landscape?[see_solution] Erosion