Biology-Objective Related Question Answers
776. What is Ecology?
Ecology is the study of inter -relationship of plants and animals with their environment
777. What is the term used to refer to the floor of the sea?
Benthic region
778. Name the biome which is characterised by the complete absence of trees?
Tundra
779. What is food chain?
The flow of energy from one trophic level to the other is called food chain.
780. What is Hibernation?
The winter sleep of an animal is called Hibernation.
781. What is Thermal pollution?
The pollution of water due to heat is called Thermal pollution.
782. What is Emigration?
It refers to the migration of individuals from an area to the outside
783. What is Lentic habitat?
It is the standing water system. It includes ponds; lakes; swamps etc.
784. What is called the method of growing same crop year after year in a soil?
Monoculture
785. What is BOD?
Biochemical Oxygen Demand
786. What is Smog?
Smog is a pollutant. It is a combination of smoke and fog.
787. The concept of ecological pyramid was given by?
Elton
788. The association of two organisms in which both the partners are benefited?
Mutualism (symbiosis)
789. The type of relationship between two living organisms of different species; in which one is benefitted and neither is harmed?
Commensalism
790. Wild - life Institute of India is in?
Dehradun
791. Indian Institute of Forest Management is in?
Bhopal
792. India’s first National Park was Hailey National Park; now known as?
Jim Corbet National Park
793. The total biosphere reserves in India?
17
794. The ozone layer is found in?
Stratosphere
795. Red data book is published by which agency?
IUCN (International Union of Conservation of Nature and Natural Resources)
796. The new name of IUCN is?
WCU (World Conservation Union)
797. Which gas is known as ‘ozone eater’?
Chloroflurocarbon (CFC)
798. The green house gases are?
CO2; CFC; CH4; N2O; SO2 & O3
799. Minamata disease occurred in Minamata bay of Japan due to which element in water?
Mercury
800. Itai - Itai disease is caused by?
Cadmium
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