Science, asked by mrmujeeb1120, 5 months ago

Spain, USA and Itlay saw a decrease in the level of which of the following gases?
a) Oxygen
c) Nitrogen
b) CO2
d)Hilum

Answers

Answered by baigalfaiz515

1

Answer:

Nitrogen-NO2

Explanation:

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Answered by bannybannyavvari

1

Answer:

d) helium....................

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