astronomy earth sci

the sun is inferred to be the most luminous when it is classified as a

• white dwarf star

• main sequence star

• giant star

• gas cloud also known as nebula

which star is more massive than our sun, but has a lower surface temperature

• 40 eridani b

• aldabearon

• siruis

• barnards star

the ´´fuel of the is

• oxygen

• hydrogen

• helium

• oil and various hydrocarbons

Tags

NGSS.HS-PS1-8

as the sun it will be composed of

• less oxygen and more carbon

• more oxygen and less carbon

• more hydrogen and less helium

• more helium and less hydrogen

Tags

NGSS.HS-ESS1-1

what factor below usually determines whether a star will be on the main sequence

• distance from our sun

• age

• mass

• size

compared to other stars, the suns is

• above average in all respect

• among the hottest stars

• among the smallest stars

• very unique

which statement describes the general relationship between the temperature and the luminosity of main sequence star

• strawberry

• as temperatura decrease, luminosity increases

• as temperature decreases, luminosity remains the same

• as temperautre increases, luminosity increases

earth was the center of the universe and everything orbited around

• geocentric model
• heliocentric model

• banana

• strawberry

planets including the earth orbit in generally a small part of a bigger picture

• banana

• heliocentric model

• strawberry

• geocentric model

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

low frequency microwave radiation is coming from all direction and all parts of the universe is

• strawberry

• cosmic background radiation

• bananan

• Big Bang theory

Tags

NGSS.HS-ESS1-2