Science

Creating a secure cyber ecosystem To designate a National nodal agency to coordinate all matters related to cyber security in the country, with clearly defined roles & responsibilities. To encourage all organizations, private and public to designate a member of senior management, as Chief Information Security Officer (CISO), responsible for cyber security efforts and initiatives. … Read more

Hydrogen bombs are thermonuclearweapons which employs fusion of isotopes ofhydrogen. The result is greatly increased explosivepower when compared to single-stage fissionweapons.The energy released in a Hydrogen bombis several magnitudes higher than anAtom bomb. A fusion bomb is more sophisticated anddifficult to make, since it requires a muchhigher temperature — in the order ofmillions of degrees … Read more

Big data is the huge amount of data which is present in an unprocessed way. It is a complex data. Big data is characterised by 3 Vs ie. Volume of data, velocity of data i.e. processed and complex variety of data. Big data has various useful application. The application of Big data can be seen … Read more

A) Emission trading: Emission trading is a market based approach to control pollution. In this a set of quota is set as limitation on the amount of carbon that can be emitted. If the entity exceeds the quota it has to buy from a seller which has emitted less quantum of carbon than the prescribed … Read more

Biomagnification:         Biomagnification refers to increase in concentration of the toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well known for mercury and DDT. Bioremediation:  Bioremediation is a biotechnical process, … Read more

  Gene Chromosomes They are located on the chromosomes. Chromosomes are the packed structure of a DNA with proteins. Genes are composed of either DNA or RNA Chromosomes composed of DNA, RNA and histones. According to Human genome project, there are 30,000 genes in the human cell. In Human cell there are 23 pair of … Read more

Noncommunicable diseases (NCDs), also known as chronic diseases, tend to be of long duration and are the result of a combination of genetic, physiological, environmental and behaviours factors. The main types of NCDs are cardiovascular diseases (like heart attacks and stroke), cancers, chronic respiratory diseases (such as chronic obstructive pulmonary disease and asthma) and diabetes. … Read more

Directional Movements Directional changes are called tropic movements. Tropic movements are the one which occurs in the direction of the stimulus. Positive phototropism is responding by bending towards the sunlight which can be seen in shoots. Negative geotropism is growing away from the ground which is also shown by shoots. Roots exhibit negative photo tropism … Read more

The Integrated Guided Missile Development Programme (IGMDP) was conceived by renowned scientist Dr. A P J Abdul Kalam to enable India attain self-sufficiency in the field of missile technology. The following are the Key components of the Programme:   Short-range surface-to-surface ballistic missile Prithvi-The Prithvi missile is a family of tactical surface-to-surface short-range ballistic missiles … Read more

Axis of evil: Axis of evil, expression used to describe the bellicose tendencies of Iran, North Korea, and Iraq in the early 21st century. The phrase was coined by Canadian-born U.S. presidential speechwriter David Frum and presidential aide Michael Gerson for use by U.S. President George W. Bush in his 2002 State of the Union address. b) Golden crescent: The Golden Crescent is a mountainous area of Iran, … Read more