Answer:
the inner core is solid because S-waves stop at the inner core. The strong magnetic field is caused by convection in the liquid outer core.
Explanation:
The Correct choice is C
<u>Demography</u> is the study of human populations and how they grow or decline.
Angiosperms are the most successful plant group is because they have pollens and flowers/fruits. The flowers are able to attract insects and this allows better transportation of pollen. Also, animals and insects may eat the seeds, and that would also be good transportation of the seed because the seed is usually excreted.
<span>Angiosperms also go through something called double fertilization, which helps the plant </span>
<span>They have a lot less cells than gymnosperm </span>
<span>MOst importantly they have vessels that can escalate their growth</span>
Answer:
At the equator, the sun is directly overhead at noon on these two equinoxes. The "nearly" equal hours of day and night is due to refraction of sunlight or a bending of the light's rays that causes the sun to appear above the horizon when the actual position of the sun is below the horizon.
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The landforms on the east and western part of the continent are very different, with the main reason being that the western part is geologically very active, while the eastern lacks geological activity.
Explanation:
The eastern part of the United States and Canada, or rather the eastern part of the North American continent, is a region that lacks geological activity for millions of years. This region can roughly be divided into two parts, one being dominated by the Appalachian Mountain Range, and the other being the plains. The Appalachians are medium high mountains, being heavily eroded, with smaller slopes, and covered with dense forests. The plains stretch along the coastline, but they are also very wide, and move several hundred of km into the mainland, making big portion of this region flat lowlands.
The western part, on the other hand, is geologically very active. There are several young mountain ranges which are still growing. There is volcanic activity, faults, and plateaus between the mountains. The coastal plains are very small and narrow. Because of the shadow effect, between the mountains there are arid zones where deserts and steppes dominate.
Learn more about the effect of the Appalachian Mountains on the first European settlers brainly.com/question/4977910
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