UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 30th October 2019. Important news and views to... View Article
October 30th, 2019 CNA:- Download PDF Here TABLE OF CONTENTS A.GS1 Related ART AND CULTURE 1. Renovation of 13th century temple to begin soon... View Article
Answer: Rhizobium is a soil bacteria that fix nitrogen from the atmosphere once it is contained inside the leguminous plant roots. Nitrogen... View Article
Bottleneck Effect: The bottleneck effect occurs when the population size is reduced drastically due to natural calamities such as earthquakes,... View Article
Natural selection is an important mechanism of evolution. It states that the organisms that are able to survive and reproduce with the changing... View Article
Algal bloom refers to the rapid accumulation of algae in freshwater or marine water, that results in the discolouration of water bodies due to... View Article
Detritivores are organisms that feed on the organic waste of dead plants and animals while decomposers are the organisms that decompose dead... View Article
Detritivores are organisms that derive their nutrition from the organic waste of dead and decaying plants and animals. They occupy the topmost... View Article
Point mutation is the mutation that affects a single nucleotide or nucleic acid. It commonly occurs when one base is substituted for the other.... View Article
Cash crops are the crops produced for commercial purposes. These are not used for the personal use of farmers or for animal feed. A cash... View Article
Ecological succession refers to the gradual changes that occur in an ecosystem over time. It may either begin by the formation of a new habitat... View Article
Emasculation is the process of removal of anthers in bisexual flowers to prevent self-pollination. It is carried out in the following steps:... View Article
Biomagnification refers to the accumulation of toxic substances in the food chain. The toxic chemicals that are released into the environment are... View Article
The Environment Protection Act was enforced in the year 1986 with the aim to protect and improve the environment and matters associated with... View Article
A pollutant is a substance that when introduced in the atmosphere causes undesirable changes in the atmosphere. The major pollutants include:... View Article
Zooplankton forms the second trophic level in an ecosystem. These are heterotrophic planktons that play an important role in the transfer of... View Article
Decomposers form the largest population in the food chain. These are the organisms that feed on the dead and decaying matter and break down the... View Article
Biogeochemical cycle is the pathway by which a chemical substance cycles through the biotic and abiotic components of the earth. These are known... View Article
Primary succession is a type of ecological succession that occurs in the areas where no life ever existed. It includes regions such as bare... View Article
The pyramid of energy can never be inverted. The pyramid represents the amount of energy at each trophic level of the food chain. The pyramid... View Article
