<span>The answer is D. The sediments like rocks, sand, and silt eroded by a river is known as a "load". As the river flows, these material goes with the river. Large particles are washed along the river bed while the finer particles float in the river.</span>
The correct answers are:
A. China imports oil and natural gas because it cannot meet demands with its own supplies;
China is country that has an ever growing economy, and that means that the demand for natural resources is also growing constantly. Because China doesn't have enough oil and natural gas, it imports huge quantities of it, mainly from Russia, in order to satisfy the demand.
C. Taiwan imports wood products because many of its forests are protected lands;
Taiwan is a relatively small island. It has a very large population though, which over the years meant that big portion of the forests were destroyed, and the wood reserves became very limited. Also, the forests were all protected sot hat they are not destroyed. Because of this, Taiwan is importing wood products on a large scale from the other countries, mostly from the nations of Southeast Asia.
Answer:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Explanation:
The amount of the sample of the radioactive isotope decays exponentially in time, the amount of mass of the sample as a function of time (), in grams, is described below:
(1)
Where:
- Initial mass, in grams.
- Time, in years.
- Time constant, in years.
The time constant can be found from half life (), in years, described in statement:
(2)
If we know that , and , then the current amount of the sample is:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Hello there!
Your question: Dry, flat lake beds located in the center of basins in arid areas are called __________.
Your answer: Dry, flat lake beds located in the center of basins in arid areas are called playas.
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