Fri. Jan 10th, 2025

Climate Types and Biomes

  1. Which of the followings is the most significant member of the tropical evergreen forests?

    Options:
    1. Creepers or climbers
    2. Epiphytes
    3. Trees
    4. Parasitic plants

    Option: C

  2. How many tree species can one hectare of land in the equatorial region account for?

    Options:
    1. 10-20 species
    2. 30-40 species
    3. 40-100 species
    4. 100-200 species

    Option: C

  3. What is the mechanism developed by climbers to reach the high insolation areas?

    Options:
    1. Thick woody stems
    2. Large crowns of numerous leaves
    3. Investment required for a large supporting biomass
    4. Circuitous and highly irregular form

    Option: D

  4. Which type of climbers or creepers are found in all strata of the forests?

    Options:
    1. Herbaceous plants
    2. Lianas
    3. Epiphytes
    4. Parasitic plants

    Option: B

  5. Which type of tropical climbers do not have their roots on the ground surface?

    Options:
    1. Herbaceous plants
    2. Lianas
    3. Epiphytes
    4. Parasitic plants

    Option: C

  6. What is the process through which autotrophic green plants manufacture their own food?

    Options:
    1. Respiration
    2. Digestion
    3. Photosynthesis
    4. Transpiration

    Option: C

  7. What is vertical stratification in vegetation communities?

    Options:
    1. The composition of plant assemblages from the ground surface to the uppermost forest canopy
    2. The competition between species for favourable locations
    3. The control over micro-climate and other factors affecting plant and animal habitats
    4. The growth of plants throughout the year providing a constant food supply for animals

    Option: A

  8. How many layers or strata are there from the ground surface to the uppermost canopy of the tropical evergreen rainforests?

    Options:
    1. 2
    2. 3
    3. 4
    4. 5

    Option: D

  9. Which layer of the rainforest represents the uppermost canopy of the tallest trees?

    Options:
    1. First or top layer
    2. Second layer
    3. Third layer
    4. Fourth layer

    Option: A

  10. What is the height range of the topmost layer of the rainforest?

    Options:
    1. 10m to 20m
    2. 20m to 30m
    3. 30m to 60m
    4. 60m to 90m

    Option: C

  11. What is the characteristic of the leaves of trees in the third layer of the rainforest?

    Options:
    1. They are smaller than the leaves of the first two layers
    2. They are the same size as the leaves of the first two layers
    3. They are larger than the leaves of the first two layers
    4. They are absent in the third layer

    Option: C

  12. Which layer of the rainforest represents the shrub layer?

    Options:
    1. First or top layer
    2. Second layer
    3. Third layer
    4. Fourth layer

    Option: D

  13. What is the dominant type of plant in the fifth or lower ground layer of the rainforest?

    Options:
    1. Trees
    2. Shrubs
    3. Herbaceous plants and ferns
    4. Grasses

    Option: C

  14. What is the unique feature of animals in the tropical evergreen rainforest biome?

    Options:
    1. They have to migrate for food
    2. They are least mobile
    3. They are active only during the day
    4. They are active only during the night

    Option: B

  15. What is the unique feature of the rainforest in terms of animal activities?

    Options:
    1. There is no activity during the day
    2. There is no activity during the night
    3. There is always hue and cry throughout 24 hours
    4. There is only activity during the rainy season

    Option: C

  16. Which of the following animals belong to the upper air animal community in the tropical rainforest biome?

    Options:
    1. Bison and African elephant
    2. Leopard and ocapi
    3. Insectivorous birds and bats
    4. Pigs and herbivorous monkeys

    Option: C

  17. What is the main factor that causes the increase in number, density, and diversity of animals in the tropical evergreen rainforest biome from the ground layer towards upward strata?

    Options:
    1. Increase in food supply upward from the ground stratum
    2. Increase in temperature upward from the ground stratum
    3. Decrease in rainfall upward from the ground stratum
    4. Decrease in sunlight upward from the ground stratum

    Option: A

  18. Which of the following animals belong to the middle-zone climbing animal community in the tropical rainforest biome?

    Options:
    1. Bison and African elephant
    2. Leopard and ocapi
    3. Squirrels and civets
    4. Numerous types of fowl

    Option: C

  19. What is the primary productivity of the tropical rainforest biome compared to other biome types?

    Options:
    1. The lowest of all biome types
    2. About the same as other biome types
    3. Higher than other biome types, but not the highest
    4. The highest of all biome types

    Option: D

  20. The main factor causing competition among the various members of vegetation communities in the tropical evergreen rainforest biome is

    Options:
    1. Water availability
    2. Soil nutrients
    3. Light availability
    4. Temperature

    Option: C