• (A) Oceans influence climate and oxygen supply globally
• (B) Oceans exist only near continents
• (C) Oceans are used only for fishing
• (D) Oceans affect coastal regions alone

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• (A) Oceans are unimportant for breathing life forms
• (B) Oceans contribute significantly to atmospheric oxygen
• (C) Forests produce all oxygen
• (D) Oxygen is unrelated to oceans

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• (A) Rainfall — agriculture support
• (B) Pollution — marine growth
• (C) Overfishing — biodiversity increase
• (D) Plastic waste — cleaner oceans

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• (A) Living organisms dependent on oxygen
• (B) Rocks only
• (C) Mountains only
• (D) Rivers only

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• (A) They support life and environmental processes
• (B) They increase land area
• (C) They stop weather changes
• (D) They create all mountains

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• (A) Culture
• (B) Geology
• (C) Astronomy
• (D) Mathematics

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• (A) Increase plastic dumping
• (B) Encourage excessive fishing
• (C) Reduce ocean pollution
• (D) Remove coastal vegetation

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• (A) Oxygen production
• (B) Mountain formation
• (C) Volcano creation
• (D) Earthquake occurrence

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• (A) Overfishing and pollution
• (B) Desert expansion only
• (C) Mountain erosion only
• (D) Glacier movement only

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• (A) Oceans affect only marine organisms
• (B) Oceans are important for climate, oxygen, food and human life
• (C) Oceans are useful only for transport
• (D) Oceans have little connection with daily life

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