The antiparticle of an electron is

• Positron

• Proton

• Alpha particles

• Alpha particles

A pair of contrasting characters controlling the same trait is called

• Factors

• Loci

• Allele

• Allele

The polar regions are sparsely populated because of

• lack of minerals

• unsuitable climatic conditions

• infertile land

• infertile land

Algal bloom results from

• Global Warming

• Salination

• Eutrophication

• Eutrophication

Which of the following pairing is incorrect?

• Hygrometer - Water Vapour content of the atmosphere

• Lactometer - Specific gravity of liquids

• Anemometer  - Speed of the wind

• Anemometer  - Speed of the wind