Questions

Heat energy can be transferred by three major methods. They are 

1. Conduction,

2. Convection and

3. Radiation.

Conduction is the movement of heat through a substance by the collision of molecules

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy.

Radiation is the transfer of energy by means of photons in electromagnetic waves governed by the same laws. It occurs through a vacuum or any transparent medium.

About 150 - 200 species of plant, insect, bird and mammal become extinct every day or 24 hrs.

This is not an accurate but an estimation by U.N. Convention on Biological Diversity and Global Extinction Rates. It is also said that current extinctions were 'up to 100 times higher than the background rate.'

A genus can best be defined as a taxon composed of one or more species and a classification level lying below family.

The principle of dominance states that some alleles are dominant, while others are recessive.

The sources of state power are specifically outlined in the Tenth Amendment of the Bill of Rights.
When the Constitution was first proposed, many people were concerned about the federal government become too powerful. A group known as the anti-federalists pushed for a way to legally set aside certain rights and powers to individual states.

This amendment was added to satisfy the anti-federalists who were concerned that the Constitution would grant the federal government unlimited power.

The Tenth Amendment states that all powers that are not specifically given to the federal government are reserved to individual states.

Exchange Traded Funds (ETFs) are a relatively new phenomenon and are gaining popularity rapidly. This post outlines the key features of an ETF.

ETFs are like mutual funds because they hold an underlying asset like stocks, debt, commodities future contracts etc. If you are new to the concept of an ETF, think of it as a mutual fund, and build your understanding from thereon. An example of an ETF is the SBI Gold ETF, which holds physical gold as its underlying asset.

It refers to the possibility for an investor to experience  losses due to  factors that affect the overall performance of the financial markets. Market risk cannot be eliminated through diversification, though it can be hedged against. The sources of market risk include natural disasters, recessions, political turmoil, changes in interest rates and terrorist attacks.