Answer:
Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.
Seismic waves are recorded by a machine called a seismograph, which tells us about the strength and speed of the seismic waves. ... Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
Explanation:
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Christopher Columbus crossed the Atlantic Ocean in approximately two months. He started his voyage in Spain with three ships: Santa Maria, Nina, and Pinta. He left in August of 1492.
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The answer is:
C. the tilt of the earth's axis and the shape of its orbit
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Answer:
Dairy and ores
Explanation:
I think that dairy is important because it contains vitamin D and that is good for your bones and dairy also prevents bone health, heart health, and type 2 diabetes.
I think we need ores cause it is simply what many of our products have for example metal for our metal cans, silver for our forks and spoons and many other things like for our tv or even for buildings and machines and most importantly our cars as well
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Answer:
the wind will move from the area marked h to l
Explanation:
The movement of the wind at any place is governed by the following principle: Air moves from a region of higher pressure to a region of lower pressure. This causes a flow, which is known as air pressure. The pressure is created by several factors. Air pressure can be created by the earth's movement. This creates zones of air pressure difference. In addition, the movement of the clouds also creates the pressure regions, these are known as fronts. This then influences the movement of air from the high region marked h to a lower region marked l.