Capitals of the United States
Capital of Georgia
Atlanta
Capital of Hawaii
Honolulu
Capital of Italy
Rome
By volume, this gas makes up about 78% of Earth's atmosphere.
Nitrogen is the most abundant gas in Earth's atmosphere. It is followed by oxygen (21%) and argon (0.9%). In its gaseous form, nitrogen is colorless, odorless, and generally inert. It does not support combustion making the atmosphere a safe mixture of gases. Did you know that nitrogen has an important role to play in the display of the northern lights or aurora borealis? Nitrogen and oxygen molecules from the atmosphere collide with fast-moving electrons from space, resulting in the phenomenon.
Capital of Maryland
Annapolis
Capital of Pennsylvania
Harrisburg
Capital of Netherlands
Amsterdam
...that contains 70% of Earth's freshwater resources.
(70%) Seventy percent of the Earth's freshwater is trapped in the ice sheets of Antarctica. It also has about 91% of all ice in the world. Despite this, Antarctica is considered a desert and one of the driest regions in the world because of a lack of precipitation. Of the rest of the available freshwater, only 1.2% is surface freshwater from rivers and lakes. Yet, it is this small amount that provides the water we use every day.
This is the hardest naturally occurring substance...
A: emerald B: tourmaline C: diamond D: corrundum
What is C: Diamond. Diamond is also one of the most valuable natural substances. Diamonds are crystals formed almost entirely of carbon. Because of its hardness, the diamond is the most enduring of all gemstones. They are among the most costly jewels in the world, partly because they are rare, Only four important diamond fields have been found - in Africa, South America, India, and the Soviet Union.
Capital of Massachussets
Boston
Capital of Louisiana
Baton Rouge
Capital of Cuba
Havana
In what month the Earth is closest to the sun?
The Earth is closest to the sun in January when it is winter in the Northern Hemisphere and farthest from it in July when it is summer in the Northern Hemisphere. This is because the Earth's orbit around the sun is not exactly a circle but elliptical, resulting in two points where during its annual revolution, Earth is closest and farthest from the sun. The closest point to the sun is called the perihelion.
Of the following, it has the longest recorded life span.
A: Termite, B: Chimpanzee, C: Indian Elephant, D: Freshwater Oyster
What is the Freshwater Oyster (80 years.) The longest recorded life span for a termite is 50 years; for a chimapanzee, 50 years; and for an Indian elephant, 70 years.
Capital of Minnesota
St. Paul
Capital of Nebraska
Lincoln
Capital of Phillipines
Manila
It is the most common element in the human body...
A: Carbon, B: Hydrogen, C: Oxygen, D: Calcium
What is C. Oxygen. It makes up almost 63% of the average human. Following, are major elements and the percentages of the human body that they represent: Oxygen- 62.81% Carbon- 19.37% Hydrogen- 9.31% Nitrogen- 5.14% Sulfur- 0.64% Phosphorus- 0.63% Other- 2.10%
This geologic formation may be found overhead if you are in a cave...
A: stalactites B: stalagmites C: mightymites D: termites
What is A: stalactites. The ones growing downward are stalactites, the ones growing upward are stalagmites. Stalactites are formed by the deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions.
Capital of Kentucky
Frankfort
Capital of New York
Albany
Capital of Brazil
Brasilia
This animal has the highest blood pressure...
A: Giraffe, B: Blue Whale, C: Elephant, D: Flea
What is A: Giraffe. Because of its extremely long neck, the giraffe must rely on its oversized heart (two feet long and twenty-five pounds!) to pump blood all the way to its head. As a result, the giraffe has the highest blood pressure of any animal: 280/180 mmHg (millimeters of mercury) at heart level when prone -- more than twice the blood pressure of an average human. Not surprisingly, because of their high blood pressure, giraffes are prone to heart attacks.
These substances control the rates of chemical reactions...
A: Reactants, B: Catalysts, C: Isotopes, D: Cathodes
What is B: Catalysts. Catalysts are substances that control the rates of chemical reactions.