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• The most abundant component in Earth's atmosphere is nitrogen, making up about 78% of the air.
• The second most abundant gas is oxygen, which makes up about 21% of the air.
• Hydrogen and carbon dioxide are both present in the air, but in much smaller amounts than nitrogen and oxygen.

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Implicit means مضمر

Expressed means دبانا

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Cohesion refers to the grammatical and lexical linking within a text that holds it together and gives it meaning.

Coherence, on the other hand, refers to the logical consistency and clarity of ideas in a text.

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