“Man and his Environment” explores the relationship between humans and the natural world, focusing on how human activities impact the environment. It covers topics like sustainability, conservation, and the balance between development and ecological preservation.
Chapter 7 biology class 10 MCQs
In the atmosphere, carbon is found as: carbon dioxide
________ is break down of the proteins of dead organisms to ammonia: Ammonification
All populations collectively are called: Community
the type of symbolic association in which partner gets benefits while other is neither benefited nor harmed is called: Commensalism
#NAME: Bacteria
In 1927,……………. developed the concept of ecological pyramids: Charles Elton
Identify the correctly matched pair: Renewable natural resource air
Which of the following is the abiotic part of ecosystems: Soil
Which form of nitrogen is taken by the producers of the ecosystem: Nitrates
An example of carnivores plant is: Sundew
An organism that actively hunts other organisms is called: Predator
In an ecosystem the flow of _________ is one way, while _________ is/are constantly recycled: Energy minerals
The major process that brings carbon from atmosphere into living world is: Photosynthesis
Which one of the following is tertiary consumer: Owl
Which of the following is the abiotic component of an ecosystem: Oxygen
The total amount of living matter in an ecosystem at any time is called: Energy
A group of organisms of same species living in a particular area is called: Population
A group of species of same species living in a particular area is called: Population
All herbivore animals are: Grass eater
An example of carnivores plant is: Sundew
Which Charles Eiton developed the concept of ecological pyramids: 1927
All ecosystem of the world join and makees: Biosphere
One of these cycles is also nutrients cycles: Biogeochemical cycles
Which one of the following is a tertiary consumer: Owl
Which is tertiary carnivore: Lion
Abiotic component of ecosystem is: Oxygen
Decomposers are: Bacteria and Fungi
It is an example of endoparasite: plasmodium
The nitrate forming bacteria are: Nitrobacter
The only source of energy for all ecosystems of the world is: Sun
An example of endoparasite: Plasmodium
Water , soil, air, temperature, wind and sunlight are example of: Abiotic factors
Which one of the following is not an endoparasite: Mosquito
Conversion of urea and uric acid into Ammonia is called: Ammonification
All ecosystems of the world combine to form: Population
What is tertairy cornivore: Lion
Which of the following is the abiotic part of ecosystem: Soil
Dengue fever is an infection of: Viral
Ectoparasite is: Leech
Example of Endoparasite is: Plasmodium
Decomposers are: Becteria and fungi
Primary source of energy for all ecosystem is: Sun
Endoparasite is: Ascaris
A community and its biotic components is known as: Biosphere
The type of symbiotic relationship in which one member get benefit and other is unaffected is called: Commensalism
Abiotic component of the ecosystem is: Light
The populations that live in a habitat nad interact with one another are collectively called: Community
A group of organisms of the same species inhabiting a species geographical area ta a particular time is called: population
Nitrobactor bacteria converts nitrites into: nitrates
A network of all the feeding relationships in an ecosystem is called: Food web
An examples of carnivore plant is: Pitcher plant
A relationship between species in which both species benefit is called: Mutualism
Which of the following is not an example of green house gas: Oxygen
Largest unit of Ecology is: Biosphere
The type of symbiotic association in which partner gets benefits while ohter is neither benefited nor harmed is called: Commenaslism
Biosphere surrounding the Earth is about: 20 KM
Habitat destruction can result in a loss of: Species
Which of the following air pollutant react with water in atmosphere producing acid rain: Sulphur dioxide, Nitrogen oxide.
One organism kills and feed on other organism is called: Predation
In the food chain tree…. caterpillar.. robin..hawk….coyote, which is secondary consumer: Robin
Abiotic component of ecosystem is: Oxygen
Which one of the following is not a temporary parasite: Virus
It is an example of primary consumers: Cattles
The producers of ecosystem are: green plants
The consumers that eat animal flesh as well as plants and plant products are called: Omnivores
Abiotic component of the ecosystem is: Light
Livingof Nitrogen bacteria in the roots nodules of Leguminous plant is an example of: Mutualism
It is an example of primary consumers: Snake
All ecosystems of the world combine to form: Competition
When we eat the onion, our trophic level is: Primary consumer
At the end of a long food chian the energy will be: Will less
Identify the correctly matched pair: Renewable natural resources air
conversion of the nitrogen gas into nitrates is called: Nitrogen fixation
In the food chaingrass……rabbit……. fox…………..bear………..mushroom, how many types of decomposers are present: 1
R-3 means: Recycle
Which form of nitrogen is taken by the producer of the Ecosystem: Nitrates
Conversion of Nitrates into nitrogen gas is called: Denitrification
An example of Endoparasite: Plasmodium
The base of food chain is always formed by: Producers
An epiphyte is an example of: Commensalism
Which one is not biotic factor: Mud
Naturally found in graphite and diamond: Carbon
Rabbit is a: Herbivore
The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called: Nitrogen fixation
The populations that live in a habitat and interact with one another are collectively called: Community
All the population that live in a habitat and interact in various ways with one another are collectively called: community
Endoparasite is: Ascaris
Which one of the example of abiotic factor: Decomposoer
it is example of secondary consumer: Snake
Living of nitrogen fixing bacteria in the roots nodules of Leguminous plant is an example of: Mutualism
The study of the relationship between organisms and their environment called: Ecology
_________ atom is the principal building block of many kind of biomolecules: Nitrogen
The utilization of nitrates by organisms is called: Assimilation
The factor of an ecosystem is: light
250 years age, the population of world was approximately ———— million: 600
A relationship between two organisms in which individual of one species may kill and eat individuals of other species is called: Predation
In the food chain grass? grasshopper? sparrow? hawk, the secondary consumers is: sparrow
The basic tropic level of all food chain is: Producers
Example of Ectoparasite is: Mosquito
Formation of Nitriates and nit5rates from ammonia is called: Nitrification
Important : Review all previous years’ 10 class past papers for comprehensive practice and better exam preparation.