Life on Earth

Which of the following characteristics of the Earth that sustain life makes it possible for water to exist in its liquid form?

• Atmosphere

• Magnetic field

• Proper distance

• Oxygen

Which of the following characteristics of the Earth that supports life protects the earth from harmful solar wind and cosmic rays?

• Atmosphere

• Magnetic field

• Proper distance

• Oxygen

Identify the uses of Oxygen.

• Cellular respiration

• Plant's Photosynthesis

• Use to treat Carbon Monoxide poisoning

• Use in manufacturing sulfuric acid

How does the presence of atmosphere sustains life on earth?

• It is the main constituent of the hydrosphere

• It made it possible for water to exist in its liquid form

• It protects the earth from the solar wind

• It traps the sunlight inside, and keeps the earth warm

Identify the importance of Water.

• use in Plant's Photosynthesis

• protects the earth from harmful rays

• use in treating carbon monoxide poisoning

• compose 70% of the human body

• acts as the major constituent of hydrologic cycle

The _______________ is a zone in the Solar system where water can exist in its liquid form.

_____________ is a colorless, odorless, tasteless gas essential to living organisms.

_______________is a layer or a set of layers of gases surrounding a planet or other material body

Which of the following factors that makes earth habitable is being analogize in the picture?

• Proper distance

• Magnetic field

• Atmosphere

• Oxygen

Which of the following factors that make earth habitable is being illustrated in the picture?

• Proper distance

• Magnetic field

• Atmosphere

• Oxygen