The Aral Sea has shrunk in size because of heavy irrigation. The correct option among all the options that are given in the question is the third option or option "C". The Soviets used the river waters feeding the Aral sea for the purpose of cotton plantation and this destroyed the Aral Sea.
There are seven provinces that are either entirely or partially located between 50 N and 60 N.
Explanation:
Canada is a vast country, in fact it is the second largest in the world. The country is located on high latitude, and more than half of its mainland territory is between the latitudes of 50 N and 60 N. The provinces are very large, and each of them is larger than big portion of the countries in the world. In the southern half of the country, the provinces tend to be arranged in an east to west manner, kind of by longitude.
- There are ten provinces in Canada.
- Seven out of the ten provinces are entirely or partially between the latitudes of 50 N and 60 N.
- The provinces located between these latitudes are Newfoundland, Quebec, Ontario, Manitoba, Saskatchewan, Alberta, and British Columbia.
- The three other provinces, Nunavut, North West Territory, and Yukon Territory, are located further north, mostly between 60 N and 70 N.
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Answer:
C. Improved technology in agriculture means it takes fewer farmers to produce the food the country needs.
Explanation:
The development of farming equipment has caused a reduction in the need for manual labor. Machines such as combine harvesters allow for vast amounts of farm work to completed in a short period. It also helps with extensive commercial farming which means there are bigger farms and fewer farmers. The Green Revolution in the mid-1900s saw the development of high yield variety crops that were stronger and more reliable. While more fertilizer and water is needed, people are not.
The reason for language diversion is the isolation of the people who speak the same language, but due to diversion and lesser contact between these people, now the language is used only in the dialects.
If the coast-to-coast distance is about 2900 miles, it will take about ...
... (2900 mi)/(186000 mi/s) ≈ 15.6 ms
for the signal to travel coast-to-coast at light speed.
_____
There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.
A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).
