assignment 1

Question 1

How do the geocentric and heliocentric models of the universe differ?

Answer 1

The geocentric model proposes that earth is stationary and does not move and other objects in the solar system revolve around the earth.

The heliocentric model suggests that the sun is the center of the universe and that other objects in the solar system like earth revolve around it.

Question 2

What is the name of the galaxy in which Earth is found?

a. Milky Way
b. Andromeda
c. Ursa Major
d. Orion’s Belt

Answer 2

milky way

Question 3

Which of the following accounts for the vast majority of our solar system’s mass?

a. Earth
b. Pluto
c. The Asteroid Belt
d. The Sun

Answer 3

the sun

Question 4

The number of days in the year represents which of the following?

a. The time it takes the Moon to revolve around the Sun

b. The time it takes the Earth to complete one rotation around its axis

c. The time it takes the Earth to complete one revolution around the Sun

d. The time it takes the Sun to complete one rotation around its axis

Answer 4

c. the time it takes the earth to complete one revolution around the sun.

Question 5

How do terrestrial and Jovian planets differ compositionally?

Answer 5

Terrestrial planets are different because they have lost most of their gasses due to them being the closest four planets to the sun. The Jovian planets are different from terrestrial because they are larger because they keep their original gases due to their farther proximity to the sun and because they capture the escaping gases from the terrestrial planets as well.

Question 6

List and describe the four spheres of the Earth System. (geosphere)

Answer 6

The geosphere is the part of earth that is all solid mass that makes up the surface of the earth including rocks, soil, and sand. It also reaches all the way down to the core of the earth as well.

Question 7

List and describe the four spheres of the Earth System. (hydrosphere)

Answer 7

The hydrosphere is all parts of earth that is made up of water that continuously circulates like ponds, rivers, lakes, oceans, snow, ice, and rain.

Question 8

List and describe the four spheres of the Earth System. (atmosphere)

Answer 8

The atmosphere is the part of earth that holds gasses on earth like oxygen, carbon dioxide, and nitrogen. The atmosphere is invisible to us on earth, but it is in the air.

Question 9

List and describe the four spheres of the Earth System. (biosphere)

Answer 9

The biosphere is the part of earth that holds all living organisms like animals, humans, and plants.

Question 10

A group of interacting, or independent, parts that form a complex whole is a:

a. Model
b. Theory
c. Cycle
d. System