The method of heat transfer by which the Sun energy reaches the Earth is:(1 point)

Responses

Conduction
Conduction

Convection
Convection

Radiation
Radiation

Solaration

Radiation

How bright a star appears to us on Earth depends MAINLY on: (1 point)

Responses

the age of the star
the age of the star

your position on Earth
your position on Earth

The composition of the star
The composition of the star

the stars distance from Earth

the star's distance from Earth.

In the tundra, life forms are limited by the interaction of several of Earth’s spheres. One sphere that interacts with the geosphere, hydrosphere and biosphere is the cryosphere. What is this sphere responsible for in the tundra?(1 point)

Responses

poor, rocky soil
poor, rocky soil

low growing plants
low growing plants

ground permafrost
ground permafrost

mountainous terrain

ground permafrost.

Select the pair of bodies which are LEAST alike in composition and size.(1 point)

Responses

the Moon and a comet
the Moon and a comet

Earth and Venus
Earth and Venus

Uranus and Neptune
Uranus and Neptune

an asteroid and a meteor

the Moon and a comet

The inner planets are DIFFERENT from the outer planets mainly because they are:(1 point)

Responses

Larger
Larger

Colder
Colder

Comprised of rock
Comprised of rock

Comprised of gas

Comprised of rock.

Ronald observes a large island off the coast of Indonesia on a map. A few months later, he observes that there are many smaller islands in place of the large one he had seen earlier. Which of these could have caused this change?(1 point)

Responses

A tsunami
A tsunami

A mudslide
A mudslide

Wind erosion
Wind erosion

Volcanic eruption