EALS_1st Summative Test

What makes planet Earth different from the other planets in the solar system?

• A. It supports life                         

• B. It is mostly covered in water          

• C. The atmosphere holds gases

• D. All of the above

What is the reason why every living thing on Earth has the chance of survival?

• A. Earth has ozone layer to protect living organisms from harmful radiation.

• B. Earth is covered with 65% water.

• C. Earth has active volcanoes similar with those that are found in Venus.

• D. Earth thick atmosphere consisted mainly of carbon dioxide.

What makes the Earth a Goldilocks planet?

• A. It maintains its atmosphere with the gases for organisms to use.

• B. It has enough available water and air needed by the organisms.

• C. It has all the factors that are “just right” for the organisms to live. 

• D. It has a consistent temperature that is “just right” for us to live.

What makes human and other living organisms capable to live on Earth?

• A. Earth can provide food for the organism.

• B. Earth can protect the organism from any possible threat. 

• C. Earth’s temperature is mostly hot compared to other planets.

• D. Earth has the right amount of temperature, water, good atmosphere, and favorable climate.

It was found out that Earth’s surface is covered with water. Approximately, how many percent of water comprises the Earth?

• A. 3% water

• B. 70% water

• C. 85% water

• D. 97% water

Which analogy correctly corresponds to the characteristics of the following Earth’s spheres?

• A. Hydrosphere: water portion; Biosphere: living organism

• B. Atmosphere: solid Earth; Geosphere: gaseous envelope

• C. Geosphere: gaseous envelope; Hydrosphere: water portion

• D. Biosphere: living organism; Atmosphere: solid Earth

Life is supported by oxygen and carbon dioxide. Which subsystem will best describe the statement?

• A. Atmosphere      

• B. Biosphere     

•   C. Geosphere 

• D. Hydrosphere

Which system of the Earth is considered as the largest component of the Earth?

• A. Atmosphere      

• B. Biosphere  

•    C. Geosphere    

• D. Hydrosphere

From the given choices, which is an example of a connection between biosphere connecting to atmosphere?

• A. Animals eat plants    

• B. Animals drink water        

•   C. Animals lie in caves

•     D. Plants produce oxygen

Among the choices, which clearly gives an example of connection between hydrosphere and geosphere?

• A. boats transporting goods 

• B. waves eroding rocks on the beach

• C. fish swimming in water

• D. water evaporating to make clouds