Answers SLPS-2001310-EarthSpace B -GFClassification of Living Things

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The sudden eruptions of energy from a small area of the Sun’s surface are known as

solar flares.

sunspots.

prominences.

solar winds.

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Which is the final event that occurs when a star is forming?

The outer layer of the star expands.

Gravity pulls gas and dust together.

A black hole forms as the core collapses.

Nuclear fusion begins under high pressure.

Solar winds have an influence all the way to about 160 AU from the Sun. About how many kilometers is that?

24,000,000,000 km

48,000,000,000 km

240,000,000,000 km

480,000,000,000 km

Which is one physical property that all stars have?

They are made of gases.

They shine very brightly.

They have a triangle shape.

They contain iron in their cores.

Lori attended a lecture about the Sun, and the presenter had placed this image on the wall. Which layer of the Sun could this image be referring to?

the convection zone, because it shows how energy moves in a convection current

the radiation zone, because it shows how energy is transferred through radiation

the core, because it shows how the Sun creates energy through the process of nuclear fusion

the chromosphere, because it shows how energy is emitted by the atmosphere of the Sun

What are some applications of the field of spectroscopy? Select 5 options. for identifying elements in a samplefor determining the distance and velocity of galaxiesfor producing neon lightsfor determining types of chemical bondsfor use in medical imaging devicesfor killing bacteria in foods

for identifying elements in a sample

for determining the distance and velocity of galaxies

for producing neon lights

for determining types of chemical bonds

for use in medical imaging devices

for killing bacteria in foods

What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom? ( Please list one word only and lower case )

Answer not available

The emission spectrums are known for the elements below.What elements are in the unknown sample? Select 2 options. boronlithiumhydrogenheliumpotassium

boron

lithium

hydrogen

helium

potassium

Which type of star will become a black hole when it dies?

a protostar

a supergiant

a white dwarf

a red dwarf

What is the correct order of star colors from hottest to coolest?

white, yellow, red, blue

yellow, orange, white, red

red, orange, yellow, blue-white

blue, white, yellow-white, orange

About how old is the Sun?

1.2 billion years

4.6 billion years

6.4 billion years

8.2 billion years

What is the study of the spectra produced from the emission and absorption of electromagnetic radiation?

study of absorption spectrums

study of emission spectrum

nanotechnology

spectroscopy

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