Environmental Studies · Geography

Natural Vegetation and Habitats

1,633 Questions

Study the characteristics of various biomes, including tropical rainforests, savannas, and thorn forests. Questions address ecological concepts like stratification, climate factors, and regional vegetation types such as littoral forests. This topic is commonly asked in geography and environmental science papers.

Forest biomes and typesSavanna and grassland habitatsTropical rainforest characteristicsEcological stratificationThreats to natural habitats

Natural Vegetation and Habitats Questions

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Mangrove plants are found in

  1. Alpine tundra

  2. Tundra

  3. Marshy areas along rivers

  4. Marshy areas along sea shores
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mangroves are plants that live in marshy areas along the seashores as they are adapted to take water inside by filtering out large amounts of salts present in seawater.

So, the correct option is 'Marshy areas along sea shores'.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Sunderbans contain

  1. Mangrove plants

  2. Alpine trees

  3. Teak forest

  4. Grass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The delta which is formed by the confluence of Ganges, Brahmaputra and Meghna Rivers in the Bay of Bengal is known as Sunderbans. It is a mangrove area and contains lots of Mangrove forests. Four world heritage sites occur here viz Sundarbans National Park, Sundarbans West, Sundarbans South, and Sundarbans East Wildlife Sanctuaries. The word 'Sunderbans' means beautiful forests.

So, the correct answer is 'Mangrove plants'.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Mangrove forests occur in

  1. Laterite soil

  2. Estuaries

  3. Arid areas

  4. Hilly areas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • An estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean.
  • Mangroves are forests of salt-tolerant trees and shrubs that grow in the shallow tidal waters of estuaries and coastal areas in tropical regions.
  • Mangroves protect shorelines from damaging storm and hurricane winds, waves, and floods.
  • Hence Mangrove forests occur in Estuaries.
  • So, the correct answer is 'Estuaries'.
Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Pneumatophores are found in

  1. The vegetation which is found in marshy and saline lake

  2. The vegetation which found in saline soil ecosystem

  3. Xerophytes

  4. Epiphytes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

These specialized aerial roots enable plants to breathe air in habitats that have waterlogged soil. The roots may grow down from the stem, or up from typical roots. The surface of these roots are covered with lenticels which take up air into spongy tissue which in turn uses osmotic pathways to spread oxygen throughout the plant as needed. 

Therefore, the correct answer is option B.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Halophytes occur in

  1. Salty soil

  2. Desert

  3. Near river

  4. Rainy water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Halophytes are naturally salt-tolerant plants that have evolved to grow in saline soils and waters with high salinity, such as in mangrove swamps, marshes and seashores. They are not usually found to grow near rivers or in rain water as they do not provide saline conditions. These plants have special physiological adaptations that enable them to absorb water from soils and from seawater, which have salt concentrations that nonhalophytes could not tolerate. Some halophytes are actually succulent, with a high water-storage capacity.
Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Which plant is found in mangrove zone?

  1. Rhizophora

  2. Acacia

  3. Pinus

  4. Tectona grandis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove. It is distributed in estuarine ecosystems throughout the tropics. Rhizophora mangle grows on aerial prop roots, which arch above the water level, giving this tree the characteristic mangrove appearance.

Therefore, the correct answer is option A.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Rhizophora occurs in

  1. Tropical rain forest

  2. Tropical deciduous forest

  3. Mangrove

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rhizophora is a genus of tropical mangrove trees. It occurs in Mangrove forests. It is also called as true mangrove. These are found in coastal intertidal zone. They are adapted to live in harsh environmental conditions. Thus, the correct answer is 'Mangrove.'

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Sunderbans contain mainly

  1. Alpine trees

  2. Mangrove plants

  3. Grass

  4. Fir forests
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sunderbans contain mainly mangrove plants. These are the mangrove area in the region of bay of Bengal. They have a thick canopy. The name is derived from the Sundari, the local name of the mangrove species Heritiera fomes. 

Thus, the correct answer is 'Mangrove plants.'

Multiple choice vernalisation plant growth growth and development plant growth and development biology

Vernalization is subjected to plants growing in 

  1. Tropical areas

  2. Sub tropical

  3. Temperate areas

  4. Hot areas/Arctic region
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Vernalization refers to the phenomenon of inducing flowering in plants by subjecting them to prolonged cold temperatures. After vernalization, plants acquire the ability to flower. Vernalization is subjected to plants growing in Temperate(temperature in these regions is moderate) areas.
So, the correct answer is 'Temperate areas'.
Multiple choice biology main natural resources classification of threatened species red data book methods of conservation

Red data book is for enlisting

  1. Endemic species

  2. Decorative plants

  3. Exotic species

  4. Plants on verge of extinction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

'Red Data Book is also known as 'Red Book' or 'Russian Red Data Book'. It is a state document established for documenting rare and endangered species of animals, plants and fungi, as well as some local subspecies that exist within the territory of the 'Russian Federation' and its continental shelf and marine economic zone. The book has been adopted by Russia and all CIS states to enact a common agreement on rare and endangered species protection. The book provides a central information source in organizing studies and monitoring programs on rare and endangered species and their habitats. It is regularly consulted when developing and implementing special measures for the protection and rehabilitation of such species.