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Vilka [71]
3 years ago
9

Which economic activity is considered part of the secondary sector of an economy? agriculture manufacturing O office work Oscien

tific research​
Geography
1 answer:
svetlana [45]3 years ago
7 0

Answer:B

Explanation:Manufacturing

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Weather is a result of different air masses coming in contact with each other. Use the fronts and pressure systems on the weathe
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Answer:

Mild weather.

Explanation:

Mild weather is the weather that labeled correctly because the regions nearer to the ocean or sea have mild weather condition. Due to near of water, the coastal regions experiencing warmer winters and cooler summers as compared to regions that are situated far from the ocean or sea. This is a result of ocean temperatures that taking longer to warm up and cool down than the adjacent landmass.

4 0
3 years ago
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Afghanistan's mountains
OLEGan [10]

Answer:

Afghanistan's mountains have kept the country from ever being invaded.

Explanation:

Afghanistan is a country in terrible conditions, and this is not the case just nowadays but it has been like that for a very long time. Despite all of the internal troubles of the country and it seems to be very weak in pretty much every sector, it has never been invaded in the past few centuries, and very rarely in the more distant history and always it has been short-lasting.

The main reason for this has been the mountains and the general geography of the country. Very high and rugged mountains are separating the country from potential invaders. Even if an invading force manages to go through the mountains, it will suffer great losses just by doing so, and what comes next is desert and more rugged terrain, which will further damage them, so by the time they engage in battle, they will be too weak to conquer Afghanistan.

4 0
3 years ago
Overfishing is no longer a threat to Earth’s oceans.
Zanzabum
Over fishing is an Threat to earth oceans because many people do over fishing and it can cause extinction of many fishes and can also effect the oceans 
so its false that <span>Over fishing is no longer a threat to Earth’s oceans
hope it helps
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</span>
4 0
3 years ago
As the frequency of a wave increases, what happens to the crests?
Mumz [18]

Answer:

If the frequency of a wave increases while its speed remains constant, the wavelength decreases i.e. the distance between successive crests decreases.

Explanation:

3 0
3 years ago
Helium was discovered on earth years after it had been discovered on the sun.
Zinaida [17]
The statement is true.
As weird as it may sound, helium was indeed first discovered on the Sun, and after some time on Earth. The first evidence of helium was observed on August 18 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the Sun's chromosphere. This line has been detected by a French astronomer by the name of Jules Janssen during a total solar eclipse in Gantur, India. 
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3 years ago
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