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प्रश्न
______ soil has pH 7.
पर्याय
Temperature
volume
mass
density
humidity
acidic
weight
neutral
shape
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उत्तर
Neutral soil has pH 7.
संबंधित प्रश्न
Give two uses of the following component present in air:
nitrogen
Name two air pollutants which cause global warming.
Fill in the blank
Air is a ______ of gases
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
While freezing, the ______ of water is lowered.
Why is it said that-
Air is a homogeneous mixture of various gases.
With whom should I pair up?
| Group A | Group B | ||
| (1) | Air | (a) | Excretion |
| (2) | Water | (b) | Scattering of light |
| (3) | Soil | (c) | Plasticity |
Name the important scientists and their studies which led to the discovery of the components of air.
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
The composition of air is always exactly the same.
