Q1 : The Earth’s atmosphere is constituted of equal parts of nitrogen, oxygen and carbon dioxide. True or False?

Q2  : Over the past three decades alone, about how much of the world's tropical rain forests have been cleared?

Q3  : What is the primary cause of global warming?

Q4        : What is the name for pollution in which airborne acids-produced by the creation of sulfur dioxide and nitrogen oxides from the burning of fossil fuels and from certain kinds of manufacturing-fall to Earth?

Q5        : The 1997 Kyoto Protocol, an international treaty that sets concrete targets for developed countries to reduce the greenhouse gas emissions that contribute to global warming, was signed by more than 130 countries but the United States refused to ratify it. True or False?

Do you know that Earth Day was first observed on April 22, 1970. The idea for a nationwide demonstration in support of Earth’s environment came from Senator Gaylord Nelson of Wisconsin. Nelson is considered the founder of Earth Day.