Advertisements
Advertisements
प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
विकल्प
sulphur dioxide and oxygen
nitrogen and oxygen
carbon dioxide and water vapour
nitrogen dioxide and sulphur dioxide
Advertisements
उत्तर
nitrogen dioxide and sulphur dioxide
APPEARS IN
संबंधित प्रश्न
Write the chemical name of Lime water
Name the following.
Inert gases in the air
The capacity of air to hold moisture depends upon the ______ of the air.
State the meaning of the term atmosphere.
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
What is wind energy?
What should be done if the clothes of a person catch fire accidentally? Why?
In the boxes of Column, I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II
| Column I | Column II | ||
| (a) | \[\boxed{\text{D}}\]\[\boxed{\text{I}}\]\[\boxed{\text{L}}\]\[\boxed{\text{L}}\]\[\boxed{\text{M}}\]\[\boxed{\text{W}}\]\[\boxed{\text{I}}\]\[\boxed{\text{N}}\] | (a) | `squaresquaresquaresquaresquaresquaresquare square` |
| (b) | \[\boxed{\text{Y}}\]\[\boxed{\text{N}}\]\[\boxed{\text{O}}\]\[\boxed{\text{G}}\]\[\boxed{\text{X}}\]\[\boxed{\text{E}}\] | (b) | `squaresquaresquaresquaresquare square` |
| (c) | \[\boxed{\text{M}}\]\[\boxed{\text{E}}\]\[\boxed{\text{S}}\]\[\boxed{\text{K}}\]\[\boxed{\text{O}}\] | (c) | `squaresquaresquaresquaresquare` |
| (d) | \[\boxed{\text{T}}\]\[\boxed{\text{U}}\]\[\boxed{\text{D}}\]\[\boxed{\text{S}}\] | (d) | `squaresquaresquare` |
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Why did the tiny bubbles appeared?
