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