<u>Answer:
</u>
The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
</u>
- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
Londoners are younger than anyone in the UK, London is more ethnically diverse than anyone in the UK, In London people are more educated (58%vs 38% graduates in working age population), In London people earn more money than the rest of the UK, London regards itself as innately naturally superior than anyone else despite having more in the way of things like violent crime than the rest of the country.
Answer:
300
Explanation:
The larger block can be cut into 7 cm pieces for a total of 10 pieces along the 72 cm dimension, 6 pieces along the 42 cm dimension, and 5 pieces along the 36 cm dimension. That will yield a total of
10 × 6 × 5 = 300 . . . cubical blocks
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Remaining scraps could be fastened together to make additional blocks.
B: untied nations i do mj ethics
