True or False?

Have you ever noticed how swiftly a cloud’s shadow moves along the ground? But this does not even compare to the speed at which the shadow of the Moon roves over the surface of the Earth: an astonishing 5,000 miles per hour! Now, isn’t that impressive?

It’s fascinating that the largest animal ever to have lived on earth, the blue whale, feeds on nothing but krill, shrimp-like creatures that are among the smallest sea-dwellers. But it takes 36 metric tons of krill a day to allay an adult blue whale’s hunger. That’s the weight of 25 cars!

The Caspian Sea is the world’s largest enclosed inland body of water. Its total surface area is a staggering 371,000 square kilometers. It contains 78,200 cubic km of water and is also the 3rd deepest lake in the world, reaching depths of 1,025 m below surface! Iran, Kazakhstan, Turkmenistan, Russia, and Azerbaijan surround the basin of the lake.