Air

Air Around Us

By RAHIL RAHEEM, ZOHAIR, ADHIL, RAHATUL, RAHIL AMEEN, RAFSHID, RIPON

Multiple Choice

What are the two main processes responsible for maintaining the balance of oxygen in air.

• Photosynthesis & Respiration

• Oxygen Cyce

• Chlorophyll & Photosythesis

• Water & Soil

Multiple Choice

What have rapidly decreased the green cover of the earth?

• Deforestation & Urbanization

• CFS & POLLUTION

• WARS

Multiple Choice

The cycle of consumption and release of oxygen in nature is called ______. 

• Oxygen cycle

• Ozone layer

• Atmosphere

• Global Warming

Multiple Choice

An ________is the layers of gases surrounding a planet or other celestial body

• Atmosphere

• Gases

• Moon

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Draw

Draw an Oxygen Cycle.

State whether the following sentence is True or False ​

Multiple Choice

The atmosphere maintains the right temperature on the earth

• FALSE

• TRUE

Multiple Choice

The rate of photosynthesis is very low during daytime

• FALSE

• TRUE

Multiple Choice

Plants don't produce and release much more oxygen than they consume during respiration.

• FALSE

• TRUE

Multiple Choice

Nearly 90% of the Earth's ozone is in the stratosphere and is referred to as the ozone layer

• True

• False