Solar System

Question 1

This hypothesis suggests that the sun is made around the rotating gas that cools and contracts.

Answer 1

Nebular hypothesis

Question 2

This hypothesis suggests an approaching proto-sun was pulled by the sun that eventually helped create the planets.

Answer 2

Encounter Hypothesis.

Question 3

Dusts and rocks formed to create planetessimals while gas giants are made using gas and dusts farther away from the sun.

Answer 3

Proto-planet Hypothesis

Question 4

Important prerequisites of life. 70% of earth’s surface

Answer 4

Water

Question 5

Bacteria that can tolerate extreme temperatures

Answer 5

Thermophile.

Question 6

Planets closer to the sun

Answer 6

Terrestrial/Rocky Planets

Question 7

Planets much farther away from the Sun

Answer 7

Gas Giants

Question 8

A belt between Mars and Jupiter

Answer 8

Asteroid Belt

Question 9

Only planet known to inhabit life

Answer 9

Earth

Question 10

Earth’s diameter

Answer 10

12,756 km

Question 11

Earth’s gravity

Answer 11

9.8 m/s2

Question 12

Earth’s orbital velocity

Answer 12

29.8

Question 13

Earth’s orbital period

Answer 13

365.2 Earth days

Question 14

Model where Earth is the center of the Universe

Answer 14

Geocentric Model

Question 15

Sun being the center of the Solar System

Answer 15

Heliocentric Model

Question 16

A specific range of distancr where planets orbiting the star is suitable for water

Answer 16

Habitable zone

Question 17

Heat trapped in the atmosphere from space due to the thickening of CO2 in the atmosphere

Answer 17

Greenhouse effect

Question 18

Age of solar system

Answer 18

4.6 Billion years

Question 19

Earth is an independent and a ______ system.

Answer 19

Closed