Why Are There Leap Years?
Why Are There Leap Years? To answer this question, you need to remember that a year is measured by the amount of time it takes the earth to make one trip around the...
Read MoreWhy Are There Leap Years? To answer this question, you need to remember that a year is measured by the amount of time it takes the earth to make one trip around the...
Read MoreHow Is Coal Formed? Coal comes from plants that have been buried in the earth so long, they turned hard and black. Millions of years ago, much of the earth was swampy...
Read MoreHow Long Do Animals Live? The lives of animals range from several hours to many years. An adult mayfly lives only a few hours. The giant tortoise may live more than 150...
Read MoreDo Pine and Fir Trees Lose Their Leaves? Many trees shed their leaves in the fall. Their branches are bare by the time winter comes. But some trees, such as pines and...
Read MoreHow Many Dog Years Equal One Human Year? The first two years of a dog’s life equal about the first 24 years of a human’s life. After that, each year of a...
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