Olympiad Science - Conservation of Plants and Animals
Exam Duration: 45 Mins Total Questions : 30
Which of the following shows a modern technology measure that helps preserve and conserve the environment?
- (a)
he practising crop rotation
- (b)
The recycling of paper, plastics and metal cans
- (c)
sing machines in agricultural industry
- (d)
Converting industrial wastes into biogas
By recycling resources, we can prevent overexploitation of resouces and conserve the resources and in turn conserve the environment.
Which of the following is an abiotic component?
- (a)
Cow
- (b)
Grass
- (c)
Temperature
- (d)
Bacteria
The non-living or abiotic components of an ecosystem are air, water, temperature, soil etc.
Which of the following are the effects of the mismanagement of timber logging?
- (a)
Floods
- (b)
Soil erosion
- (c)
Aforestation
- (d)
Both (A) and (B
Excess timber logging results in deforestation which causes flooding, soil erosion, etc. Selective logging(Le the logging of only matured trees should be practised), Reforestation helps in minimising the effect of mismanagement.
Which of the following must be practised to preserve and conserve the environment?
- (a)
Deforestation
- (b)
Recycling
- (c)
Soil erosion
- (d)
Pollution
Conservation involves keeping the natural environment in its balanced state. Preservation involves keeping some of the earth's resources for future generations
Which of the following is the result of the introduction of exotic species?
- (a)
Conservation of wildlife
- (b)
Maintenance of biodiversity
- (c)
Adverse affect on native species adversely.
- (d)
The survival of native species
The introduction of exotic species into an area disturbs the natural ecological balance. They compete with the native species for nutrients, shelter and spread new diseases
Which of the following is/are advantage( s) of forests?
- (a)
Forests provide us with oxygen
- (b)
They protect soil and provide habitat to a large number of animals
- (c)
They help in bringing good rainfall in neighbouring areas
- (d)
All of these
Forestsstop soil erosion, provide shelter and thus prevent floods, Forests provide us with oxygen and rainfall
In which of the following practices a part of a forest cleared for cuttivation once before moving on to another new part?
- (a)
Shifting cultivation
- (b)
Crop rotation
- (c)
Step farming
- (d)
All of these
Shifting cultivation is practised by tribals where they clear a new forest area for cultivation and then move on to a new part after few seasons,
Which of the following are the uses of IUCN Red List?
- (a)
Developing awareness about the importance of threatened biodiversity
- (b)
Identification and documentation of endangered species
- (c)
Providing a global index of the decline of biodiversity
- (d)
All of these
IUCN red list is a book which keeps the record of all the endangered plants and animals
What prevents soil erosion?
- (a)
Allowing herbivorous animals to graze excessively
- (b)
Growing plants to form the soil cover
- (c)
Increasing fertility
- (d)
Making the land sloppy
The root system of many plants especially grasses, have high soil binding capacity and thus help in the prevention of soil erosion
What is the main aim of conserving living organisms?
- (a)
To increase the world's population of organisms
- (b)
To prevent the extinction of endangered species
- (c)
To help the students of botany and zoology
- (d)
To help in ecotourism
Conservation helps to prevent extinction of endangered species.
Which of the following are living resources in nature?
- (a)
Flora
- (b)
Soil
- (c)
Fauna
- (d)
Both (A) and (B)
Plants known as flora and animals, fauna are living resources in nature
What is an endangered animal?
- (a)
An animal on the verge of extinction
- (b)
An animal which is extinct
- (c)
An animal that is dangerous to humans
- (d)
An animal that is dangerous to other animals
An animal on the verge of extinction is called an endangered animal.
Which of the following is/are factors that pose a great threat to biodiversity?
- (a)
Habitat destruction
- (b)
Disturbance and introduction of alien species
- (c)
Man's interference with nature
- (d)
All of these
Habitat destruction, over use of natural resources and mans's interference with nature pose a threat to biodiversity
Whichofthefollowingisthe consequence of man's interference with nature?
- (a)
Increase in natural resources
- (b)
Biological imbalance
- (c)
Increase in the ozone layer
- (d)
Reappearance of extinct species
Biological imbalance is a consequence of man's interference with nature.
What is a National Park?
- (a)
An area strictly reserved for improvement of wild life
- (b)
An area where grazing and cultivation are permitted
- (c)
A park where the whole nation can have picnics
- (d)
A park which can be privately owned
National parks are areas strictly reserved for improvement of wild life and help i~ protecting wild animals especially the endangered species
Which of the following is the consequence of man's interference with nature?
- (a)
Afforestation
- (b)
Recycling of paper
- (c)
Poaching endangered animals
- (d)
Rain harvesting
Poaching that endanger animals is the result of the interference of man with nature.
Which of the following is the biodiversity hot spot?
- (a)
Oceans
- (b)
Deserts
- (c)
Rivers
- (d)
Forests
Forests are biodiversity hot spots
What isthe direction in which energy flow in an ecosystem?
- (a)
Multidirectional
- (b)
Unidirectional
- (c)
Bidirectional
- (d)
Circular
Energy flow in an ecosystem is unidirectional.
Which of the following control methods can restore balance in an ecosystem?
- (a)
Rainwater harvesting for conservation and management of water
- (b)
Conservation of ocean resources and preservation of marine life
- (c)
Public awareness programmes concerning conservation of wild life
- (d)
All of these
Rain water harvesting, conservation of oceans, preservation of marine and wild life can restore balance in an ecosystem
Which of the following steps is NOT suitable for the conservation of tigers?
- (a)
Setting up sanctuaries to protect animals
- (b)
Establishing forest reserves
- (c)
Establishing more recreational and tourist centres in the forest
- (d)
Increasing public awareness on the effects of indiscriminate hunting of animals
Human beings and their activities disturb the habitat of tigers.
Which of the following is NOT a reason for the fall in biodiversity?
- (a)
Deforestation
- (b)
Green revolution
- (c)
Hunting
- (d)
Environmental pollution
Green revolution is not the reason for the fall in biodiversity.
Which of the following methods of conservation helps in the maintaining of bio diversity?
- (a)
Pollution
- (b)
Water sources
- (c)
Gene pool
- (d)
Forest reserves
Gene pool helps in maintaining diversity
Which of the following is NOT true regarding the importance of wild life?
- (a)
Ecological value
- (b)
Non-commercial value
- (c)
Scientific value
- (d)
Aesthetic value
Wildlife is commercially important. This renders choice B incorrect.
Which of the following is NOT on the verge of extinction?
- (a)
Leopard
- (b)
The sloth
- (c)
Nilgiri langur
- (d)
Fox
Fox is not an endangered wild animal of India
In which of the following years Wildlife Protection act was passed?
- (a)
1972
- (b)
1982
- (c)
1970
- (d)
1990
In 1972 Wildlife Protection Act was passed.
Which of the following is NOT an effective way to saveliving organisms from extinction?
- (a)
Taking up afforestation
- (b)
Establishing national parks
- (c)
Importing organisms from other countries
- (d)
Establishing centres to look after endangered species
Importing organisms from other countries is not an effective way to conserve living organisms
Which of the following terms is used to describe the species of plants and animals that are found exclusively in a particular area called?
- (a)
Endemic species
- (b)
Endangered species
- (c)
Rare species
- (d)
Extinct species
Endemic species are plants and animals that are exclusively found in a particular regions.
Which of the following is caused by deforestation ?
- (a)
Acid rain
- (b)
Greenhouse effect
- (c)
Increased oxygen content in the atmosphere
- (d)
Decreased carbon dioxide content in the atmosphere
Deforestation increases the carbon dioxide content in the atmosphere which results in the greenhouse effect.
Which of the following is/are true of conservation and preservation?
(i) Protects the ecosystem from destruction
(ii) Prevents the depletion of natural resources
(iii) Maintains the population of endangered plant and animal species
- (a)
Only (i) and (ii)
- (b)
Only (i) and (iii)
- (c)
Only (ii) and (iii)
- (d)
All the three
Conservation involves keeping the natural environment in its balanced state. Preservation involves keeping some of the earth's resources for future generations
What should be done for species preservation?
- (a)
Protecting areas that have endangered species
- (b)
Protecting the breeding grounds of endangered species
- (c)
Issuing hunting licence to VIPs
- (d)
Both (A) and (B)
For the preservation of a species, there should be a protected area for endangered plants and animals as well as protection of their breeding grounds.