Advertisements
Advertisements
Question
Whales come up to the water surface to breathe in oxygen.
Options
True
False
Advertisements
Solution
Whales come up to the water surface to breathe in oxygen- True.
APPEARS IN
RELATED QUESTIONS
“Air is a mixture”. Support this statement citing at least three evidences.
Complete and balance the following chemical equation.
CaO + H2O → ____________
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
Briefly state the importance of Carbon dioxide.
Name three noble gases present in the air. State their one industrial use
Complete the statement given below by filling in the blank with the correct word from the words given below
The ______ is a layer which extends up to about 10-50 km. above the earth.
Name the following:
A process which removes carbon dioxide from the air.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
