What are the five main indicators of global climate change of our planet?

LohaHridoy
  1. Sea level, rising temperature, rain, nitrogen and Arctic ocean ice
  2. Antarctica ice, oxygen, rain, drought and sea level
  3. Arctic ocean ice, carbon dioxide, global temperature, sea level, surface ice
  4. None of these

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Answer: Option 3

Environmentalists observed that Arctic ice is melting or retreating at tremcndous rate leading to rising sea level. This has happened due to increased concentration of CO? leading to green house effect. Also glaciers are diminishing in size. (This option is most appropriate when compared to other option)

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Answer: Option 2 Let'

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When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.?

Answer: Option 2 Let'

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