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3 years ago

What factors have caused Earth to evolve over geologic time?

1 answer:

8 0

Earth, the planet:

1. Collision of Earth with Mars-sized planet.

2. Formation of the Moon and its gravitational effects.

3. Cooling and solidification of Earth's molten outer surface.

4. Period of intense asteroid bombardment.

5. Build-up of liquid water on Earth's surface.

6. Appearance of continents.

7. Start of plate tectonics.

8. Appearance of photosynthetic bacteria.

9. Change in atmosphere due to photosynthetic bacteria.

10. Widespread appearance of complex organisms.

11. Adaptation of plant and animal life to land.

12. Periods of intense, long-lasting volcanic activity.

13. Re-positioning of Earth's continents and oceans, and its

resultant effect on weather patterns and ocean circulation.

14. Changes in Earth's magnetic fields.

15. Changes in Earth's orientation to the sun.

16. Random devastating meteorite impacts.

17. Glaciations, floods, earthquakes.

Life: Abundance, Diversity and Extinction of different species in response to changing climatic, ecologic and edaphic conditions.

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Which of the following is a transformer used for?

mamaluj [8]

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3 years ago

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The first person to map the Milky Way Galaxy using radio waves was

Art [367]

Answer:B

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-g A small block is attached to an ideal spring and is moving in SHM on a horizontal frictionless surface. The amplitude of the

Nina [5.8K]

Answer:

a= 92. 13 m/s²

Explanation:

Given that

Amplitude ,A= 0.165 m

The maximum speed ,V(max) = 3.9 m/s

We know that maximum velocity in the SHM given as

V(max) = ω A

ω=Angular speed

A=Amplitude

$\omega =\dfrac{3.9}{0.165}\ rad/s$

ω=23.63 rad/s

The maximum acceleration given as

a = ω² A

a= (23.63)² x 0.165 m/s²

a= 92. 13 m/s²

Therefore the maximum magnitude of the acceleration will be 92. 13 m/s².

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3 years ago

What is a loose icy body with a long narrow orbit?

Bumek [7]

A comet is the loose, icy body with a long, narrow orbit.
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3 years ago

two ships leave a port at the same time. The first ship sails on a bearing of 40 degrees at 18 knots and the second at a bearing

Yuliya22 [10]

Answer:

The distance between the ships is 87.84 km.

Explanation:

Given that,

Angle of first ship= 40°

Speed of first ship = 18 knots

Angle of second ship= 130°

Speed of second ship = 26 knots