Question

is termed as a virgin
cultivated crops and fruits, orchards form pa
of vegetation but not natural vegetation.
Do You Know?
The virgin vegetation, which
are purely Indian are known as endemic or
indigenous species but those which have come
from outside India are termed as exotic plants.
The term flora is used to denote plants
particular region or period. Similarly, t
pecies of animals are referred to asfauna. T
uge diversity in flora and fauna kingdom​

Answer 1

Answer:

As noted before, alkenes are hydrocarbons with carbon-to-carbon double bonds (R2C=CR2) and alkynes are hydrocarbons with carbon-to-carbon triple bonds (R–C≡C–R). Collectively, they are called unsaturated hydrocarbons because they have fewer hydrogen atoms than does an alkane with the same number of carbon atoms, as is indicated in the following general formulas: