MCQ
The main source of food is/ are:
- AAgriculture
- BAnimal Husbandry
- CVermiculture
- ✓Both $A$ and $B$
Agriculture and animal husbandry are the primary sources of food from plants and animals, respectively.
Vermiculture is the use of earthworms to convert organic waste into manure.
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|
Substance
|
Boiling Point $(^\circ C)$
|
Melting Point $(^\circ C$)
|
|
$A$
|
$-183$
|
$-219$
|
|
$B$
|
$445$
|
$119$
|
|
$C$
|
$78$
|
$-15$
|