Advertisements
Advertisements
प्रश्न
Fill in the blank
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called _____.
उत्तर
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called rust.
APPEARS IN
संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
Write down the composition of three main gases present in air by volume.
Give a reason why water droplets appear on the outer surface of a tumbler containing ice.
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.
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
Tabulate the various components of air, including the components with variable composition.
Compare respiration and combustion-both involving oxygen of the air.
What are the components of air?
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
What is not true about air?