Three types of carp fish,namely Catla,Labeo,and Cirrhinus,can be cultured together in the same pond to obtain higher economic yield because they exhibit:

$Leucaena leucocephala$ is:

Read the following statements carefully and select the correct ones:
$(1)$ The wheat variety $Atlas$ $66$ has high protein content.
$(2)$ $SCP$ is an alternative source of protein for human and animal nutrition.
$(3)$ Plants developed through micropropagation are genetically different from the parent plant.
$(4)$ Semi-dwarf rice varieties were derived from $IR-8$ and $Taichung$ $Native-1$.

Which are the top five cereals in the world in terms of annual production?

Which three crops contribute the most to global food production?

Consider the following statements $(I-IV)$ regarding organic farming:
$I.$ Use of genetically modified crops like $Bt$ cotton.
$II.$ Input of naturally produced compost.
$III.$ No use of urea and pesticides.
$IV.$ Production of vitamin and mineral-rich vegetables.
Which of the above statements are correct?