Questions

Sea appears blue in colour due to the scattering of the rays when they hit water molecules

Sound is a mechanical vibration and needs a medium for propagation. The higher the density of the medium, the faster the sound travels. So, sound cannot travel through vacuum.

As the sound travels faster in solids than liquids and gases, sound travels faster in the glass than Air and water.

The Govardhan Eco Village of International Society for Krishna Consciousness (ISKCON) at Wada taluka, has received an award instituted by Water Digest, a news portal on water management.

The SCPCA method can be used to evaluate channel members.

a) Sales (S): How much sales each channel member can give within a cetain time frame

b) Cost(C): How much cost would be incurred for each channel?

c) Profitability(P): Which channel can give better profitability to the company?

d) Control(C): Whether company can have better control over its channel members or not.

e) Adaptability (A): Whether the channel alternatives are flexible enough to any changes or not. The channel meeting the objectives of the company is selected

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

When is genetic drift a major factor in evolution is

* When there is low gene flow.

* When there is no selective pressure.

* When there is a bottleneck.