What are fundamental physical quantities give examples
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"The quantity which is not depend on any other physical quantity is known as fundamental quantity."
eg:mass, Temperature, Electric current etc .
Explanation:
Conditionals: if
Grammar > Verbs > Conditionals and wishes > Conditionals: if
from English Grammar Today
Imagined conditions
There are different types of conditions. Some are possible or likely, others are unlikely, and others are impossible:
If the weather improves, we’ll go for a walk. (It is possible or likely that the weather will improve.)
If the weather improved, we could go for a walk. (It is not likely that the weather will improve.)
If the weather had improved, we could have gone for a walk. (The weather did not improve – fine weather is therefore an impossible condition.)
These types of conditions are used in three types of sentences, called first, second and third conditional sentences.
Imagined conditions: the first conditional
We use the first conditional to talk about the result of an imagined future situation, when we believe the imagined situation is quite likely: