NIOS Class 12 Geography Chapter 10 Biosphere, Biomes and Biodiversity

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NIOS Class 12 Geography Chapter 10 Biosphere, Biomes and Biodiversity

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Biosphere, Biomes and Biodiversity

Chapter: 10

MODULE – 5: Biogeography and Biodiversity

INTEX QUESTIONS 10.1

Fill in the blanks:

1. The Banyan tree is _____ component of the environment. 

Ans: Biotic.

2. Temperature of water changes due to _____ process. 

Ans: Physical 

3. Biosphere includes _____ and _____ components.

Ans: Biotic, Abiotic 

4. All creatures of the environment including animals and plants are ____ with each other.

Ans: linked.

INTEX QUESTIONS 10.2 

Marks (✓) for True or (×) for False:

1. Humans are found on the base level of the pyramid depicting  the food chain.

Ans: False.

2. Herbivore animals feed on plants. 

Ans: True

3. Carnivorous animals feed on plants.

Ans: False.

4. Decomposers break down dead issues of organisms.

Ans: True.

INTEX QUESTIONS 10.3 

1. Explain the meaning of biomes.

Ans: A biome is a plant and animal community which comes under a terrestrial ecosystem that covers a large geographical area.

2. Name any two regions where desert types of biomes are found.

Ans: Sahara and Thar.

INTEX QUESTIONS 10.4 

1. Name any three countries which has mega biodiversity hotspots.

Ans: Mexico, Peru and India.

2. In which year India has signed the convention of biodiversity. 

Ans: 1992.

TERMINAL QUESTIONS 

1. What is a biome? Explain types of biomes.

Ans: A biome is a plant and animal community which comes under a terrestrial ecosystem that covers a large geographical area . The boundaries of the different biomes on land are determined mainly by climate and types of vegetation.

Biomes	Sub Types	Regions	Flora and fauna
Forest	Tropical  Equatorial  Deciduous  Temperate  Boreal	A1-10°N-SA2-10°-25°N-S B-eastern North America, N.E. Asia, Western and Central Europe  C- broad belt of Eurasia and North America, parts of Siberia, Alaska, Canada and Scandinavia	A1-multi layout canopy, tall and large dress A2-less dense free of medium height many varieties coexist insects, bats, birds and animals B. Moderately dense board leave trees less diversity of plant species of bridge maple etc are common trees is coral rabbit black bears mountain lions etc are common animals  C. Evergreen conifers like pine screws etc woodpeckers hawks bears wolves deer hares and bears are common animals.
Desert	Hot and dry  Semi- Arid Coastal  Cold	Sahara, Kalahari, Thar, Rub-al-e-khali Marginal areas of hot deserts  Atacama Tundra climatic regions	A-C- scanty vegetation; few large mammals, insects, reptiles and birds D- rabbits, rats, antelopes, and ground squirrels
Grassland	Tropical savannah Temperate Steppe	Large areas of Africa, Australia, South America and India  Parts of Eurasia and North America	Grasses: trees and large shrubs absent; giraffe, zebras, buffaloes , leopards, Hyena, elephant, mice, moles, snakes, worms etc are common animal Grasses: occasional trace such as cottonwoods, oaks and willows, gazelles, zebras, rhinoceros, wild horses, lions, variety of birds, worms, snakes etc. are common animals
Aquatic	Freshwater marine	Lake, river,streams and wetlands Ocean coral reef lagoons and Estuaries	Algal and other aquatic and Marine plant communities with varieties of water dwelling animals
Altitudinal	Slopes of high mountain ranges like the Himalayas, the Alps etc	Deciduous to Tundra vegetation varying according to Altitude	__