A) 15th century B) 19th century C) 17th century D) 21st century
A) Industrial Revolution B) French Revolution C) Scientific Revolution D) American Revolution
A) Oxygen B) Helium C) Carbon dioxide D) Nitrogen
A) Amazon rainforest B) Antarctica C) Sahara desert D) Arctic
A) Releasing heat into the atmosphere B) Causing cooling of the Earth C) Absorbing heat and carbon dioxide D) Preventing greenhouse gas emissions
A) Pleistocene B) Anthropocene C) Holocene D) Miocene
A) Sulfur dioxide B) Carbon monoxide C) Methane D) Nitrous oxide
A) Human activities B) Plate tectonics C) Volcanic eruptions D) Solar radiation |