E. Keith Clark
What is causing Global Climate Change?

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Judi
The earth takes almost 24 hours to make a complete turn on its axis, so we might expect each high tide to occur 12 hours after the one before. However, the actual time between high tides is 12 hours 25 minutes. Can you account for the difference?

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andrew1000
Early sailors discovered a gradual change in the position of the north star, this discovery helped prove what?

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Mrs Ann stephenson
Why is the sea salty, where did the salt come from?

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Miss Nina Mulligan
How big is the ocean?

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Worp
How much lower would the Atlantic and Pacific oceans be at the equator were it not for the centrifugal effect of the earth's rotation? What interesting effect might this produce in terms of extended littoral zones and coastline changes?

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Mr Anuj Saxena
Why there is difference of 50 minutes between 2 consecutive high tides?

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Mr Anuj Saxena
What causes high tide and low tide?

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Mr SUNIL MEHTA
Why is Seawater Salty?

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t
What separates watersheds?

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Miss Gabrielle Sylvain
what are the factors (and their effects) which determine the rate at which sediments are deposited in quiet water?

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Mr Marshall Hortman
How is salt removed/recycled in the ocean?

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Lord Douglas Randall
What makes the tides happen?

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Mrs sheila bailey
Point at which orbiting object is farthest from the earth.

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Mr James Gorniak
How deep is the north sea ?

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Ms Annie V
Why is the ocean salty?

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fosters
I have noticed when surfing, that the last wave in a group of set waves is usually the biggest. What are the reasons for this?

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