Answer in one line

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Last edited 25 days ago by Learn LoopHQ.

Answer key

Chapter: 06. Air And Atmosphere

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What is the primary function of oxygen in the process of respiration?

How do aquatic animals like fish obtain oxygen from water?

Name two items that air helps to dry.

How is nitrogen returned to the soil to maintain its balance in nature after plants and animals die?

Write the simple word equation for the process of respiration.

At what temperature does respiration typically take place compared to burning?

What is the basic characteristic of air that allows us to feel its presence?

How does the atmosphere contribute to maintaining life on Earth in terms of temperature?

Name two products obtained from petroleum.

Explain how the burning of fuels affects the balance of oxygen and carbon dioxide in nature.

What is the purpose of adding ethyl mercaptan to LPG?

What is smog and how does it affect daily life?

Briefly explain what happens when you tilt an inverted glass submerged in water.

How does the separability of air’s components differentiate it from a compound?

What is the primary function of oxygen in the process of burning?

Suggest one simple measure an individual can take to help prevent air pollution.

What is the role of chlorophyll in photosynthesis?

Name two key characteristics of air besides its gaseous nature.

What two conditions are necessary for the rusting of iron to occur?

Why do organisms like earthworms come out of the soil during heavy rains?

How is coal formed, and where is it obtained from?

In the experiment showing plant respiration, why does the limewater in flask B turn milky?

What is the role of carbon dioxide for plants?

How does the presence of air in soil become evident when water is added to it?

Name two natural causes of air pollution.

Which type of fuel is preferable for vehicles to reduce air pollution: petrol/diesel or CNG?

State one difference between respiration and burning regarding their nature (natural/artificial) and continuity.

Write the simple word equation for the process of burning or combustion.

What are air pollutants?

Provide the word equation for the chemical process of rusting.

What is the purpose of adding ethyl mercaptan to LPG?

Why can air not be represented by a chemical formula like a compound?

How does the greenhouse effect relate to global warming?

Give an example of how the composition of air varies from place to place or with time.

How do animals obtain nitrogen for their growth?

List two applications where fuels are used to generate energy.

Name two greenhouse gases other than carbon dioxide.

State one evidence that shows air is a mixture rather than a compound, related to energy change or component properties.

Besides its role in fire extinguishers and dry ice, what common beverage application uses carbon dioxide?

Write the simple word equation for the process of photosynthesis.

How does nitrogen from the atmosphere become available to plants for their growth?

Why should tall chimneys in factories be installed with filters?

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