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The percentage of species that are contained by Tropical rain forests are
  • a)
    10%
  • b)
    40%
  • c)
    50%
  • d)
    60%
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
The percentage of species that are contained by Tropical rain forests ...
Tropical regions occupy about one-fourth of the total area of the earth
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The percentage of species that are contained by Tropical rain forests ...
Percentage of Species in Tropical Rainforests

Tropical rainforests are some of the most biodiverse places on Earth. They are home to a wide range of species, from insects to mammals, and play a vital role in maintaining the health of the planet. But what percentage of all species are contained within these habitats?

Answer:

The correct answer is option 'C', 50%.

Explanation:

Tropical rainforests cover only about 6% of the Earth's surface, yet they are home to over half of all known species. Scientists estimate that there are millions of other species that have yet to be discovered in these habitats. This incredible diversity is due to the favorable climate, abundance of food, and complex ecosystems found in rainforests.

Why is it important to know this?

Understanding the percentage of species contained within tropical rainforests is essential for conservation efforts. These ecosystems are under threat from deforestation, climate change, and other human activities. By protecting rainforests, we can help to preserve the incredible biodiversity found within them and ensure a healthy planet for future generations.
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The percentage of species that are contained by Tropical rain forests ...
Explanation:
Tropical rain forests are one of the most diverse ecosystems on Earth, containing an incredible variety of plant and animal species. The percentage of species that are contained by tropical rainforests is a commonly debated topic. However, the most widely accepted estimate is that tropical rainforests contain around 50% of Earth's species.

Reasons for high species diversity in Tropical rain forests:

1. Climate: Tropical rainforests have a warm and humid climate that enables year-round growth of plants and supports a wide variety of animal species.

2. Habitat diversity: The tropical rainforest provides a wide range of habitats, including the forest floor, the canopy, and the understory, which support a diverse range of species.

3. Evolution: Tropical rainforests have been around for millions of years, which has allowed for the evolution of a vast number of species.

4. Isolation: Tropical rainforests are often isolated from other ecosystems, which has allowed for the development of unique species.

Conclusion:

Tropical rainforests are incredibly important ecosystems that support a vast array of plant and animal species. Despite covering only about 6% of Earth's land surface, they are home to around 50% of Earth's species. The high species diversity in tropical rainforests is due to a combination of factors, including climate, habitat diversity, evolution, and isolation.
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Direction: Read the case study given below and answer any three of the questions that follow.In mountainous areas, the decrease in temperature with increasing altitude leads to a corresponding change in natural vegetation. Mountain forests can be classified into two types, the northern mountain forests and the southern mountain forests. The Himalayan ranges show a succession of vegetation from the tropical to the tundra, which change in with the altitude. Deciduous forests are found in the foot hills of the Himalayas. It is succeeded by the wet temperate type of forests between an altitude of 1,000-2,000 m. In the higher hill ranges of north eastern India, hilly areas of West Bengal and Uttaranchal, evergreen broad leaf trees such as oak and chestnut are predominant. Between 1,500-1,750 m, pine forests are also well developed in this zone, with Chir Pine as a very useful commercial tree. Deodar, a highly valued endemic species grows mainly in the western part of the Himalayan range. Deodar is a durable wood mainly used in construction activity. Similarly, the chinar and the walnut, which sustain the famous Kashmir handicrafts, belong to this zone. Blue pine and spruce appear at altitudes of 2,225-3,048 m. At many places in this zone, temperate grasslands are also found. But in the higher reaches there is a transition to Alpine forests and pastures. Silver firs, junipers, pines, birchand rhododendrons, etc. occur between 3,000-4,000 m. However, these pastures are used extensively for transhumance by tribes like the Gujjars, the Bakarwals, the Bhotiyas and the Gaddis. The southern slopes of the Himalayas carry a thicker vegetation cover because of relatively higher precipitation than the drier north-facing slopes. At higher altitudes, mosses and lichens form part of the tundra vegetation. The southern mountain forests include the forests found in three distinct areas of Peninsular India viz; the Western Ghats, the Vindhyas and the Nilgiris. As they are closer to the tropics, and only 1,500 m above the sea level, vegetation is temperate in the higher regions, and subtropical on the lower regions of the Western Ghats, especially in Kerala, Tamil Nadu and Karnataka. The temperate forests are called Sholas in the Nilgiris, Anaimalai and Palani hills. Some of the other trees of this forest of economic. Significance includes magnolia, laurel, cinchona and wattle. Such forests are also found in the Satpura and the Maikal ranges.Q. Mosses and lichens are part of the

Direction: Read the case study given below and answer any three of the questions that follow.In mountainous areas, the decrease in temperature with increasing altitude leads to a corresponding change in natural vegetation. Mountain forests can be classified into two types, the northern mountain forests and the southern mountain forests. The Himalayan ranges show a succession of vegetation from the tropical to the tundra, which change in with the altitude. Deciduous forests are found in the foot hills of the Himalayas. It is succeeded by the wet temperate type of forests between an altitude of 1,000-2,000 m. In the higher hill ranges of north eastern India, hilly areas of West Bengal and Uttaranchal, evergreen broad leaf trees such as oak and chestnut are predominant. Between 1,500-1,750 m, pine forests are also well developed in this zone, with Chir Pine as a very useful commercial tree. Deodar, a highly valued endemic species grows mainly in the western part of the Himalayan range. Deodar is a durable wood mainly used in construction activity. Similarly, the chinar and the walnut, which sustain the famous Kashmir handicrafts, belong to this zone. Blue pine and spruce appear at altitudes of 2,225-3,048 m. At many places in this zone, temperate grasslands are also found. But in the higher reaches there is a transition to Alpine forests and pastures. Silver firs, junipers, pines, birchand rhododendrons, etc. occur between 3,000-4,000 m. However, these pastures are used extensively for transhumance by tribes like the Gujjars, the Bakarwals, the Bhotiyas and the Gaddis. The southern slopes of the Himalayas carry a thicker vegetation cover because of relatively higher precipitation than the drier north-facing slopes. At higher altitudes, mosses and lichens form part of the tundra vegetation. The southern mountain forests include the forests found in three distinct areas of Peninsular India viz; the Western Ghats, the Vindhyas and the Nilgiris. As they are closer to the tropics, and only 1,500 m above the sea level, vegetation is temperate in the higher regions, and subtropical on the lower regions of the Western Ghats, especially in Kerala, Tamil Nadu and Karnataka. The temperate forests are called Sholas in the Nilgiris, Anaimalai and Palani hills. Some of the other trees of this forest of economic. Significance includes magnolia, laurel, cinchona and wattle. Such forests are also found in the Satpura and the Maikal ranges.Q. Deodar, a highly valued endemic species grows mainly in which part of the Himalayan range?

Direction: Read the case study given below and answer any three of the questions that follow.In mountainous areas, the decrease in temperature with increasing altitude leads to a corresponding change in natural vegetation. Mountain forests can be classified into two types, the northern mountain forests and the southern mountain forests. The Himalayan ranges show a succession of vegetation from the tropical to the tundra, which change in with the altitude. Deciduous forests are found in the foot hills of the Himalayas. It is succeeded by the wet temperate type of forests between an altitude of 1,000-2,000 m. In the higher hill ranges of north eastern India, hilly areas of West Bengal and Uttaranchal, evergreen broad leaf trees such as oak and chestnut are predominant. Between 1,500-1,750 m, pine forests are also well developed in this zone, with Chir Pine as a very useful commercial tree. Deodar, a highly valued endemic species grows mainly in the western part of the Himalayan range. Deodar is a durable wood mainly used in construction activity. Similarly, the chinar and the walnut, which sustain the famous Kashmir handicrafts, belong to this zone. Blue pine and spruce appear at altitudes of 2,225-3,048 m. At many places in this zone, temperate grasslands are also found. But in the higher reaches there is a transition to Alpine forests and pastures. Silver firs, junipers, pines, birchand rhododendrons, etc. occur between 3,000-4,000 m. However, these pastures are used extensively for transhumance by tribes like the Gujjars, the Bakarwals, the Bhotiyas and the Gaddis. The southern slopes of the Himalayas carry a thicker vegetation cover because of relatively higher precipitation than the drier north-facing slopes. At higher altitudes, mosses and lichens form part of the tundra vegetation. The southern mountain forests include the forests found in three distinct areas of Peninsular India viz; the Western Ghats, the Vindhyas and the Nilgiris. As they are closer to the tropics, and only 1,500 m above the sea level, vegetation is temperate in the higher regions, and subtropical on the lower regions of the Western Ghats, especially in Kerala, Tamil Nadu and Karnataka. The temperate forests are called Sholas in the Nilgiris, Anaimalai and Palani hills. Some of the other trees of this forest of economic. Significance includes magnolia, laurel, cinchona and wattle. Such forests are also found in the Satpura and the Maikal ranges.Q. Which of the following forests are found in the foothills of the Himalayas?

Direction: Read the case study given below and answer any three of the questions that follow.In mountainous areas, the decrease in temperature with increasing altitude leads to a corresponding change in natural vegetation. Mountain forests can be classified into two types, the northern mountain forests and the southern mountain forests. The Himalayan ranges show a succession of vegetation from the tropical to the tundra, which change in with the altitude. Deciduous forests are found in the foot hills of the Himalayas. It is succeeded by the wet temperate type of forests between an altitude of 1,000-2,000 m. In the higher hill ranges of north eastern India, hilly areas of West Bengal and Uttaranchal, evergreen broad leaf trees such as oak and chestnut are predominant. Between 1,500-1,750 m, pine forests are also well developed in this zone, with Chir Pine as a very useful commercial tree. Deodar, a highly valued endemic species grows mainly in the western part of the Himalayan range. Deodar is a durable wood mainly used in construction activity. Similarly, the chinar and the walnut, which sustain the famous Kashmir handicrafts, belong to this zone. Blue pine and spruce appear at altitudes of 2,225-3,048 m. At many places in this zone, temperate grasslands are also found. But in the higher reaches there is a transition to Alpine forests and pastures. Silver firs, junipers, pines, birchand rhododendrons, etc. occur between 3,000-4,000 m. However, these pastures are used extensively for transhumance by tribes like the Gujjars, the Bakarwals, the Bhotiyas and the Gaddis. The southern slopes of the Himalayas carry a thicker vegetation cover because of relatively higher precipitation than the drier north-facing slopes. At higher altitudes, mosses and lichens form part of the tundra vegetation. The southern mountain forests include the forests found in three distinct areas of Peninsular India viz; the Western Ghats, the Vindhyas and the Nilgiris. As they are closer to the tropics, and only 1,500 m above the sea level, vegetation is temperate in the higher regions, and subtropical on the lower regions of the Western Ghats, especially in Kerala, Tamil Nadu and Karnataka. The temperate forests are called Sholas in the Nilgiris, Anaimalai and Palani hills. Some of the other trees of this forest of economic. Significance includes magnolia, laurel, cinchona and wattle. Such forests are also found in the Satpura and the Maikal ranges.Q. In Nilgiris, Sholas is

Read the case study given below and answer the questions that follow: Household industries are the smallest manufacturing units. The artisans use local raw materials and simple tools to produce everyday goods in their homes with the help of their family members or part-time labour. Finished products may be for consumption in the same household or, for sale in local (villag e) markets, or, for barter. Capital and transportation do not wield much influence as this type of manufacturing has low commercial significance and most of the tools are devised locally. Some common everydayproducts produced in this sector of manufacturing include foodstuffs, fabrics, mats, containers, tools, furniture, shoes, and figurines from woodlot and forest, shoes, thongs and other articles from leather; pottery and bricks from clays and stones. Goldsmiths make jewellery of gold, silver and bronze. Some artefacts and crafts are made out of bamboo, wood obtained locally from the forests.Q. Household industries are conducted by

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The percentage of species that are contained by Tropical rain forests area)10%b)40%c)50%d)60%Correct answer is option 'C'. Can you explain this answer?
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