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The Earth is made up of what percentage of water?

49. What was India’s political position during the cold war?

Which country has the highest percentage of power generated from geothermal sources?

What is used to help keep your computer private and protected, and consists of hardware and software between your computer and the internet?

Sulfur oxides and nitrogen oxides mixing with moisture in the atmosphere can cause what?

What is the name of an energy source that is derived from organic material?

An individual that is grown from a single somatic cell of its parent is called a/an…?

What is the problem of making a house too air tight?

What was the latest shuttle disaster?

Select appropriate answer for each question