Without ____ the equator would be much hotter than it is while the poles would b

Without ____ the equator would be much hotter than it is while the poles would be much cooler.

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2) The shortest day (longest night) in the southern hemisphere is

3) The soil used for cutting bricks, use in the construction of houses is

4) The meridian passing through London is called the

5) The magnetosphere becomes unstable during the magnetic storms during a period of