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3 years ago

Which of the following is the best evidence that Earth's continents were once in vastly different positions than they are today?

Physics

2 answers:

vredina [299]3 years ago

8 0

Answer:

B. Fossils of tropical plants are found in Antarctica.

Explanation:

That option is the best evidence from the given because it shows that once tropical plants and the continent that today is Antarctica were once together. There is no other form that plants could travel there.

It could have happened during the Permian Epoch when all the landmasses on Earth were together forming a supercontinent known as Pangea.

I hope this answer helps you.

4vir4ik [10]3 years ago

5 0

<span>B. Fossils of tropical plants are found in Antarctica </span>

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trapecia [35]

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Oksana_A [137]

Answer:9.75 m/s

Explanation:

Given

Length of ladder $(L)=5 m$

Foot the ladder is moving away with speed of $\frac{\mathrm{d} x}{\mathrm{d} t}=13 m/s$

From diagram

$x^2+y^2=L^2$ ------1

at $x=3$

$y^2=25-9=16$

$y=4 m$

Now differentiating equation 1 w.r.t time

$2x\frac{\mathrm{d} x}{\mathrm{d} t}+2y\frac{\mathrm{d} y}{\mathrm{d} t}=0$

$x\frac{\mathrm{d} x}{\mathrm{d} t}=-y\frac{\mathrm{d} y}{\mathrm{d} t}$

$3\times 13=-4\times \frac{\mathrm{d} y}{\mathrm{d} t}$

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negative indicates distance is decreasing with time

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3 years ago

What demonstrates the flow of energy and materials through

Tcecarenko [31]

A. Food chain

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1 year ago

Which of the following is a component of staying positive while competing

Natalija [7]

Answer: B - complimenting others on good plays

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Free_Kalibri [48]

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Explanation:

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