Asked by sleepy

How can a planetary nebula be identified? Select the two correct answers.(1 point)
Responses

central star remnant
central star remnant

dark area
dark area

diffuse edges
diffuse edges

spherical shape
Answered by sleepy
How are nebulae and stars related? Select the three correct answers.(2 points)
Responses

Stars form from nebulae.
Stars form from nebulae.

Nebulae explode to form stars.
Nebulae explode to form stars.

Stars explode to form nebulae.
Stars explode to form nebulae.

Nebulae are found inside stars.
Nebulae are found inside stars.

Stars are pulled toward nebulae.
Stars are pulled toward nebulae.

Nebulae form from stars.
Answered by sleepy
What does it mean to characterize a nebula as diffuse?(1 point)
Responses

Its edges do not have clear boundaries.
Its edges do not have clear boundaries.

It reflects only visible radiation.
It reflects only visible radiation.

It reflects only non-visible radiation.
It reflects only non-visible radiation.

Its edges have clear boundaries.
Answered by sleepy
What causes a supernova?(1 point)
Responses

energy of heat
energy of heat

energy of a nebula
energy of a nebula

force of a nebula
force of a nebula

force of gravity
Answered by GPT 3.5
central star remnant and spherical shape
Answered by GPT 3.5
Stars form from nebulae.
Nebulae explode to form stars.
Nebulae form from stars.
Answered by GPT 3.5
Its edges do not have clear boundaries.
Answered by GPT 3.5
force of gravity