Put the following stages of planet formation in order of occurrence.

What will be an ideal response?


Earliest stage
An interstellar cloud collapses into a disk of gas, dust.

Gas pushes smaller dust grains into larger grains.

Larger dust grains grow into clumps.

Clumps of dust collide and stick, forming planetesimals.

Km-sized planetesimals attract other objects by gravity.

Planets of various sizes form.
Latest stage

Physics & Space Science

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The intensity of cosmic rays bombarding the Earth's surface is greatest at

A) the poles. B) mid-latitudes. C) the equator. D) no particular locations.

Physics & Space Science

______________ faulting occurs as the result of forces parallel to the fault plane

Fill in the blank(s) with correct word

Physics & Space Science

Which of the following phenomena is not associated with light retardation?

a. A measurement by the NASA Cassini spacecraft in 2003. b. A measurement by the Viking spacecraft on Mars in 1976. c. Light moving near a large object takes a longer path due to spacetime curvature. d. Light reflected by mirrors left on the moon by astronauts.

Physics & Space Science

Supernova 1987A was the first supernova observed by astronomers since Galileo first turned a telescope to the heavens

Indicate whether the statement is true or false

Physics & Space Science