An in-depth evaluation of the world's primary forest biomes. It details the botanical adaptations, layered structures, commercial lumbering viability, and ecological conservation status of distinct forest belts worldwide.
Correct Answer:
(A) Broad leaf evergreen
Forests found in the Amazon River Basin in Brazil are called Selva or Selva's forests. These forests are located in the equatorial region. Due to high temperature and above- average rainfall (250 cm) throughout the year, dense and broad leaf evergreen forests are found here. Thus, option (a) is the correct answer.
Ques: 2
Which one among the following covers the highest percentage of forest area in the world?
Correct Answer:
(A) Temperate Coniferous forests
Temperate coniferous forests cover the highest percentage of forest area in the world. Temperate Coniferous forest is mainly found in high latitudes.
Ques: 3
Which of the following countries has a constitutional provision for maintaining 70% of its geographical area under forest?
Correct Answer:
(C) Bhutan
Bhutan has made constitutional provision for maintaining forest over 60% of its total geographical area. Presently, about 72.48 percent of Bhutan's total area is under forest cover.
Ques: 4
The evergreen rainforests are found in :
Correct Answer:
(B) Brazil
Tropical evergreen forests grow in the regions near the Equator (10°N-10°S) and close to the tropics. These regions are hot and receive heavy rainfall throughout the year. As there is no particular dry season, the trees do not shed their leaves altogether. This is the reason they are called evergreen. Three major regions of evergreen forest in the world are- Amazon River Basin- Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, and Suriname. Congo basin- Democratic Republic of Congo, Cameroon, Central African Republic, Gabon, Equatorial Guinea, Congo Republic . Southeast Asia- Indonesia, and Papua New Guinea. Therefore option (b) is correct.
Ques: 5
Taiga forests are characteristics of –
Correct Answer:
(D)
Temperate region
Taiga forests are characteristic of temperate region. Taiga Biome is also known as coniferous forest or boreal forest. It is the northernmost biome among the temperate biomes. It is expanded over North America and Eurasia to the sub-polar climate regions. Summer, in this region, is comparatively shorter.
Ques: 6
The world’s largest and most dense forests are in-
Correct Answer:
(C) Brazil
The Amazon River Basin is the largest rainforest on Earth. The basin covers 40 percent of the South American continent and includes parts of eight South American countries: Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, and Suriname.
Ques: 7
Which country has the highest percentage of its geographical area under forests?
Correct Answer:
(D)
Japan
According to World Bank Report 2022, forest area (% of land area) of given countries is as follows :
Japan - 68.4%
Indonesia - 48%
India - 24.4%
China - 23.8%
The World Bank's latest data (2022) indicates that Suriname has the highest forest area as a percentage of land, with 94.6%, while Egypt has the lowest at 0%. Globally, the average forest area is around 31.8%
Ques: 8
The coniferous forests are not found in:
Correct Answer:
(A) Amazonia
Coniferous forest is found in 50° N to 60°N latitudes that lies between the Tundra to the north and the deciduous forest to the south. These forests are found in Canada, Europe, Asia, and the United States. So, it is clear that coniferous forests are not found in Amazonia (Brazil). Rather, tropical evergreen forests are found in Amazonia (Brazil).
Ques: 9
Coniferous forests are mainly found in –
Correct Answer:
(B) Temperate region
Coniferous forests are mainly found in the temperate regions of the world.
Ques: 10
In which of the following countries of Africa, dense, hot and humid forest are found?
Correct Answer:
(A) Ivory Coast
Among the countries given in the options, hot, humid and dense forests are found in Ivory Coast. It is situated at the coast of the Gulf of Guinea.
Ques: 11
Given below are two statements, one is labelled as Assertion (A) and other as Reason (R) :
Assertion (A) : Unlike temperate forests, the tropical rain forests, if cleared, can yield productive farmland that can support intensive agriculture for several years even without chemical fertilizers.
Reason (R) : The primary productivity of the tropical rain forest is very high compared to that of temperate forests.
Code :
(A) and (R) are true individually true, and (R)is the correct explanation of
(A)
Correct Answer:
(D)
is false, but (R) is true.
Instead of the tropical rain forests, if temperate forests are cleared, they can yield productive farmland. Land for agriculture is being Fastly developed in mid-latitude area by clearing these forests. So, Assertion (A) is wrong. Primary productivity of tropical rainforest (2200 gram biomass per square meter/year) is greater than all other types of forests. It is greater than temperate forests (1320 gram biomass/square meter/year) also. Thus reason (R) is true.
Ques: 12
. If tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because
Correct Answer:
(A) The soil of rain forest is deficient in nutrients
If tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. The main reason is the deficiency of nutrients in the soil of rain forest.