balloon

Interesting facts about the Kalahari Desert.

The Kalahari Desert is located mainly in the territory of three states - Botswana, the Republic of South Africa and Namibia

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Interesting facts about ballooning

The first public launch of a balloon took place on June 4, 1783. Spectators could watch as brothers Joseph-Michel and Jacques-Etienne Montgolfier sent their invention into the air

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The oxygen cycle in nature

Because of the consumption of oxygen by all organisms, the amount of this gas is constantly decreasing, so the oxygen supply must be constantly replenished. This is the purpose of the oxygen cycle

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