WEEK 1 Origin and Structure of Earth

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

• It supports life

• It is mostly covered in water

• The atmosphere holds gases.

• All of the above

Planet Earth is uniquely different from other planets because __________.

• It has people that live in it

• It has soil where trees grow.

• It has trees that provide oxygen.

• It has liquid water in the surface.

What makes planet Earth habitable?

• It has comfortable distance from the sun.

• The atmosphere serves as shields from the sun.

• Only A

• Both A and B

Why is Earth called the “living planet?”

• It has life mechanism.

• It has water and atmosphere.

• It has carbon dioxide in the atmosphere.

• It has atmosphere that supports oxygen

Planet Earth is considered as “blue planet.” Which of the following best describes the surface of planet Earth?

• Earth has atmosphere.

• Earth has lots of volcano

• Earth is covered with red dust.

• Earth has mostly water on the surface.

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

• 45% water

• 50% water

• 60% water

• 70% water

Which among the set of planets are called terrestrial?

• Jupiter, Neptune, Uranus

• Mercury, Venus, Mars, Earth

• Earth, Venus, Mars, Jupiter

• Jupiter, Saturn, Uranus, Neptune

In order for an organism to survive, nutrients are needed. What are the nutrients that planet Earth can offer for an organism to exist?

• Earth has an atmosphere and ozone layer.

• Earth has both water cycle and nitrogen cycle.

• Earth has natural activities to circulate nutrients.

• All of the above

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

• Earth can provide food for the organism.

• Earth can protect the organism from any possible threat

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

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

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

• Earth is covered with 65% water.

• Earth thick atmosphere consisted mainly of carbon dioxide.

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

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