So by looking at the seismic waves from earthquakes the scientist learned about the crust and the mantle but they also learned about the outer and inner core. To do this you have to look at a different kind of waves, the S (secondary waves) waves that also get released by an earthquake.
Answer:
A
Explanation:
Coal is majorly used to produces electricity. The coal is ignited and the heat produced used to heat water to steam. The steam is then used to drive turbines with a dynamo effect to produce electricity. Turning off lights when not in use reduces the demand for electricity hence reducing the amount of coal needed to meet this demand.
Other ways to conserve energy is using bulbs with low energy demand - such as LEDs - and improving natural lighting indoors.
The reason why at the equator, there are no summers or winters, only wet and dry seasons is : Because at the equator the daytime, night time, temperature and sunlight are moderate.
<h3>Meaning of equator</h3>
An equator can be defined as an imaginary line that runs from west to east thereby dividing the earth into two equal part.
The equator divides the earth into the northern and southern hemispheres. because the equator is at the middle every thing that is experienced there is moderate, unlike the those at the polar region.
In conclusion, The reason why at the equator, there are no summers or winters, only wet and dry seasons is Because at the equator is at the middle and therefore the daytime, night time, temperature and sunlight are moderate.
Learn more about the equator: brainly.com/question/1264608
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Answer:
C
Explanation:
DNA and RNA are the only nucleic acids on this list
