(Environmental Studies) – 30 Most Asked Questions
1. Which gas is most responsible for global warming? A. OxygenB. NitrogenC. Carbon DioxideD. Hydrogen Answer: C. Carbon Dioxide 2. Which of the following is a renewable source of energy? A. CoalB. PetroleumC. Solar EnergyD. Natural Gas Answer: C. Solar Energy 3. Which is the largest organ of the human body? A. LiverB. HeartC. SkinD. … Read more