Why is the ozone hole dangerous?

it speeds up the global warming

it increases UV radiation

it depletes the oxygen (O2)

it disturbs Earth's magnetic field

In the ozone layer, ozone molecules absorb UV-B and UV-C radiation - short wavelength forms of ultraviolet that can disrupt organic molecules, producing cancerous changes in living cells.

Riho Ishii

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Answers by country

Azerbaijan

81%

Australia

16%

80%

France

75%

16%

Canada

18%

72%

Germany

18%

71%

174

Belarus

71%

13%

Austria

22%

70%

Poland

24%

66%

12116

India

18%

66%

209

the United Kingdom

26%

64%

131

Pakistan

21%

64%

the United States

20%

63%

380

Russia

62%

18%

10%

138

Republic of Ireland

30%

61%

Ukraine

15%

59%

13%

11%

223

the Philippines

22%

59%

Greece

38%

57%

Switzerland

21%

57%

10%

Kazakhstan

53%

23%

13%

Unknown

37%

25%

In which layer of the atmosphere the aurora is created?

The bright circle around the Sun seen in the picture is known as a halo. What causes it?

refraction of light in ice crystals

refraction in the lens of the eye or lens

refraction of light in water drops

reflections from the water surface

What, excluding water vapour, do night shining clouds consist?

micrometeors' remains

rocket engines' exhaust gases

volcanic dust

all of above

The Australian Gibson Desert is named after Alfred Gibson. Who was he?

a man who got lost in the desert

the first president of Australia

the explorer that first crossed Australia

a famous Australian poet