Section B

Question 1

What is the Lithosphere

Answer 1

All land on earth from surface to 100km below

Runs under continents and oceans

Warmed by sun and molten material in earth’s mantle

Question 2

What is the hydrosphere and what percentage of earth does it cover

Answer 2

All water on earth and covers approximately 70% of the Earth’s surface

Question 3

What percentage of water is fresh and salt

Answer 3

Fresh - 3%
Salt - 97%

Question 4

What’s the hydrologic cycle process (water cycle)

Answer 4

The amount of water on Earth stays constant as it cycles

Evaporation from bodies of water or transpiration from plants

Rises in the atmosphere to clouds and condenses

Falls to ground as precipitation (rain, snow etc)

Water then returns to bodies of water, called run-off or groundwater

Question 5

What does change of state of water involve

Answer 5

It involves a change in thermal energy, helps keep the average temperature of Earth relatively stable