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makkiz [27]
3 years ago
15

Geologists think Earth’s continents began to form _____.

Geography
1 answer:
kogti [31]3 years ago
8 0

A.  at the same time that Earth formed

Explanation:

Geologists think the earth's continents began to form about the same time the earth was formed.

Most of the rocks on the continental crust are about the oldest that been used to date the age of our planet.

  • Oceanic plates are relatively very young as they are formed at spreading centers and destroyed at convergent margins.
  • Continental masses have very high absolute ages.
  • The oldest rock on earth such as the Kabala Gneiss have been dated to be about 3 billion years.
  • Other rocks have yielded ages close to the formation of the earth.
  • We can conclude that the continents began to form immediately after the earth was formed.

learn more:

Radiometric dating brainly.com/question/7022607

#learnwithBrainly

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A satellite orbits the earth with an elliptical orbit modeled by x squared over 43 million eight hundred twenty four thousand fo
oksano4ka [1.4K]

According to the given information, the maximum distance between the satellite and the earth is 510 km.

The function that represents the elliptical route of the satellite is presented as follows;

\frac{x^2}{47,334,400} + \frac{y^2}{43,956,900}

The compass of the Earth, R = ,370 km.

The equation of an cirque is presented as follows;

\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2}

a = The major axis( the longer axis), which gives the maximum distance

between the satellite and Earth.

b = The minor axis( the shorter axis)

By comparison, we get;

a² = 47,334,400 km²

Therefore;

a = √(47,334,400 km²) = 6,880 km.

The distance between the satellite and the face of the Earth, d, is given as follows;

d = a - R

Which gives;

d = 6,880 km - 6,370 km = 510 km

Distance between the satellite and the face of the Earth, d = 510 km.

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