Which among the following have the lowest sex-ratio as

Consider the reaction-

Copper sulphate solution (blue) + Iron → Iron sulphate soluton + Copper What is the colour of the iron sulphate solution?

Brass is an alloy of:

Trans fats are considered unhealthy because they:

What is the role of enzymes in digestion?

The interaction between the alleles of two or more loci is known as:

Necessary element of change in solar energy to electric energy –

Which of the following elements was the last element of the Mendeleev's periodic table?

Which one among the following statements is not true for Mammals?

The speed of sound is maximum in which of the following ?

What is the function of meristematic tissue in plants ?