Spheres of the Earth

Question 1

What are the different spheres of the Earth?

Answer 1

Lithosphere
Hydrosphere
Biosphere
Atmosphere

Question 2

What is the Lithosphere?

Answer 2

The lithosphere, sometimes called
the geosphere, refers to all of the
rocks of the earth. It includes the planet’s crust, mantle
and core.

Question 3

What are some things that can be found in the Lithosphere?

Answer 3

Rocks, minerals, landforms, and the
processes are just some of the things in the geosphere.

Question 4

How many layers does the Lithosphere have and what are they?

Answer 4

The geosphere has four layers which can be considered as the elements: the crust, the mantle, the inner core and the outer core.

Question 5

What is the Hydrosphere?

Answer 5

The Hydrosphere is the total
amount of water on a planet.

Question 6

What can be found in the Hydrosphere?

Answer 6

The hydrosphere includes water
that is on the surface of the
planet, underground, and in the
air.

Question 7

What are the three types of Hydrosphere?

Answer 7

Liquid
Vapor
Ice

Question 8

What is the Biosphere?

Answer 8

The biosphere is defined
as the area of the planet
where organisms live,
including the ground and
the air.

Question 9

What is an example of a Biosphere?

Answer 9

An example of
the biosphere is where
life occurs on, above and
below the surface of
Earth.

Question 10

What is the Atmosphere?

Answer 10

An atmosphere is a layer or a set
of layers of gases surrounding a
planet.

Question 11

What happens to the atmosphere the further up it goes?

Answer 11

The higher the atmosphere, the
thinner it becomes and this trait
gradually moves towards space.

Question 12

What are the main elements in the atmosphere?

Answer 12

In the atmosphere the main
elements are hydrogen, nitrogen, oxygen and carbon.

Question 13

What is a system?

Answer 13

A system is is a set of detailed methods, procedures and routines
created to carry out a specific activity, perform a duty, or solve a
problem. A system can be closed or open.

Question 14

What is a Closed System?

Answer 14

A Closed System is a system that transfers energy, but not
matter, across its boundary to the surrounding environment. Our
planet is often viewed as a closed system.

Question 15

What is an Open System?

Answer 15

An Open System is a system that transfers both matter and energy
can cross its boundary to the surrounding environment. Most
ecosystems are example of open systems.

Question 16

Are Earth’s Spheres open or closed systems?

Answer 16

All of the “spheres” of the earth system are considered
open systems because energy and mass is exchanged
between them.

Question 17

Is the Earth an open or closed system?

Answer 17

The Earth system as a whole is considered a closed system because only energy is naturally
transferred outside the atmosphere.

Question 18

What are some negative impacts human have on the spheres?

Answer 18

Burning fossil fuels, pollute the atmosphere.

Piling up our waste in landfills affects the geosphere.

Pumping waste into the oceans harms the hydrosphere.

Overfishing and habitat destruction can reduce the diversity of
living things in the biosphere.