The predominant gas in the Earth's atmosphere is

a.

Helium

b.

Oxygen

c.

Methane

d.

Water vapor

e.

Nitrogen

Which type of animal is the most common in Australia, numbering 150 species A. Reptiles B. Marsupials C. Birds Answer Quick!

Which of the following is not an independent country? A. Jamaica B. Haiti C. Aruba D. Puerto Rico E. Dominican Republic

What is the biggest platform known to science?

Describe the effect of the southern alps on the climate east of the mountains. 1) Their snow and ice have a chilling effect, keeping the central and eastern areas cool and wet 2) They divert precipitation into the east area, creating monsoon

Which type of paint works best to keep a bridge from rusting

What are two radioactive isotopes that are useful for dating old rocks

Read the article titled "the votes are in" using four or more sentences, explain why the 2005 elections in Afghanistan were so important. Did many people participate? Why or why not?

Which East Asian country is a major competitor for US traders? A. Japan B. Taiwan C. South Korea D. China

Which resources are nonrenewable resources? Choose ALL answers that are correct. Water Natural Gas Solar Energy Fossil Fuels

What is it about the geography and the geology of the Galapagos Islands that make them an ideal place to stimulate ideas about evolution in someone like Charles Darwin?