World Geography
Which among the following karst landforms are also called as karst fields?

Cenote
Mogote
Polje
Foiba

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World Geography
Which among the following statements is/are correct about the Thermosphere?It lies upto an altitude of 80 km from the earth’s surface.It contains electrically charged particles known as ions.The temperature here starts increasing with heights.The International Space Station and other satellites orbit in this layer.Select the correct code from the options given below:

1, 2, 3 & 4
Only 1, 3 & 4
Only 3 & 4
Only 2, 3 & 4

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