What gas comprises the largest portion of Earth's atmosphere?
A) oxygen B) argon C) ozone D) nitrogen E) sulfur
D
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Answer the following statement(s) true (T) or false (F)
1. A nation and a country are the same thing. 2. Education and the status of women play large roles in the success of policies to limit population growth rates. 3. All countries agree on what rights are basic human rights. 4. Technological innovations and applications come equally from all world regions. 5. Deserts are defined as areas that receive no rainfall.
Living organisms are ____, which differentiates them from nonliving organisms
A) ?able to capture, store, and transmit energy B) ?capable of producing and storing their own food C) ?able to function without energy D) ?unable to transfer energy into a different kind of energy
Why is it common to use two different concepts—nation and state—to describe political entities?
What will be an ideal response?
The presence of specific polycyclic aromatic hydrocarbons (PAHs) in the red blood cells of seagulls indicates ________
A) recent exposure to pollutants from nuclear waste B) recent exposure to pollutants from oil spills C) long-term exposure to pollutants from oil spills D) long-term exposure to pollutants from nuclear waste E) nothing of concern as PAHs are normally present in red blood cells