4. There are about the same number lunar eclipses and solar eclipses in a given

Question

4. There are about the same number lunar eclipses and solar eclipses in a given period (224 solar eclipses and 230 lunar eclipses in the 21st century, for instance). Therefore, we are equally likely to observe either type of eclipses from Berkeley. [NB: let's pretend that the weather is always favorable even though this is far from true!] a. True b. False 5. The observed location of planets around their parent star does not necessarily indicate where they originally formed. a. True b. False 6. spins solid body, ie, all points on the surface of the planet execute one full revolution around the planet's axis the exact same amount of time (just under 24h, a sidereal day). Therefore the length of time between sunrise and sunset is same at all points on the planet. a. True b. False

Explanation / Answer

4 . ( B )False.

For every solar and lunar eclipses to repeat the cycle there is a cycle called saros cycle it will repeat itself after 18 years 11 days and 8 hours , and a combination of 3 lunar cycles. So For a centuary it means 100 years. 100/18.030 = 5.546.

So since it is not exactly a whole number it doesnt repeat in a centuary & Hence cannot guarantee the exact number of solar and lunar eclipses.

5 B. False

They can be hit by another material like meteroids, eg: earth also changed it's position slightly after being hit by meteroids many years ago.

6 B. False

It is true earth spins as a solid body but as Earth's axis is slightly tilted all points on surface doesnt have the same lenght of time between sunrise and sunset, this is the reason at poles they have days for 6 months and nights for 6 months unlike the equitorial regions.

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