In the absence of forests, the amount of .............. in air will increase, resulting in the .......... of Earth's temperature.
The information in which row completes the given statement?
Oxygen, increase
Oxygen, decrease
Carbon dioxide, increase
Carbon dioxide, decrease
Which one of the following is not a result of deforestation?
Destruction of ozone layer
Removal of top layer of soil by wind and rain
Increased levels of carbon dioxide in the atmosphere
Destruction of the natural habitats of plants and animals
The variety of plants, animals and micro organisms found in an area is called
Biodiversity
Desertification
Ecosystem
Deforestation
Which of the following statements about National park is correct?
It is a place where traditional life of tribals are conserved.
It is a place where human activities are permissible.
It is a place where animals are kept in closed enclosures.
It is a place where poaching is prohibited.
Study the given statements.
I. Plants provide shade and shelter for some animals.
II. Plants beautify the surroundings of an area.
III. Plants replenish the air with carbon dioxide.
IV. Some of the animals in the zoo can feed on plants.
V. The droppings of animals provide nutrients for some plants.
At the zoo, how do the plant and animal populations depend on each other?
I, IV and V only
I, III and IV only
II, III and IV only
I, II, III and IV only
Which of the following is not a way to conserve forest?
Reforestation
Planned cultivation
Prevention of illegal logging
An animal 'X' is on the verge of extinction. The animal 'X' is
Lion
Dodo
Snakes
Dinosaurs
One of the most important functions of botanical gardens is that -
they provide a beautiful area for recreation
one can observe tropical plants there
they allow ex-situ conservation
they provide the natural habitat for wildlife
A place where animals are protected in their natural habitat is called a
Sanctuary
National park
Biosphere reserve
Zoological park
Red data book contains a record of
Endangered species
Threatened species
Extinct species
All of these