Answer:
The total amount of water on the planet that is present in the <em>atmosphere</em> at any given time is about 0.001% of the total water found on Earth. This atmospheric water is responsible for all storms.
If by in storage we mean in <em>groundwater</em> then the percentage would be 1.69.
Explanation:
The overwhelming majority of all water on our planet resides in the <em>oceans</em>. These hold about 96.5% of the total.
If we only consider freshwater (water with no salt) then the greatest storage areas are <em>ice caps</em>, <em>glaciers</em>, and <em>groundwater aquifers</em>.
Answer:
The length of the third side is 2.
Explanation:
According to figure, we have a right triangle. The missing length can be determined by Pythagorean Theorem:
(1)
Where:
- Hypotenuse.
, 
- Legs.
If we know that 
and 
, then the missing length is:
(2)
The length of the third side is 2.
Answer:
The answer is Option D. All of the above.
Explanation:
Fossils are formed when living organisms become trapped in the earth and their soft tissues decompose but leave behind the hard tissues like bone. The bones gradually become rock due to the sediments that begin to cover the bones. Therefore, the fossil remains of Lucy are no longer bones and cannot provide the organic material that is necessary when trying to achieve carbon-14 dates from an ancient site. It is also true that C-14 dating tends not to be very accurate with a specimen as old as Lucy. There are new dating techniques being experimented with all the time in this branch of research, like the 40Ar/39Ar (Argon-Argon) dating technique, but in general, scientists have used paleomagnetic studies to try to date fossil remains as old as Lucy's.
There are many geographical barriers that separate China from the rest of the world, including various seas, mountains, and deserts. There is the Gobi Desert (north), the Taklimakan Desert (west), the Himalaya Mountains (south), and the Pacific Ocean (east). China is also isolated by the three seas: the Yellow Sea, East China Sea, and the South China Sea. Also in the south, there is the Tibet, which is the highest plateau in the world. There is also the Great Wall of China, which has succeeded many times in keeping out invaders (built by Shi Huangdi).
