Tag: evs - i

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Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Biotic natural resource among the following is _____________.

  1. air

  2. sunlight

  3. plants

  4. minerals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biotic natural resources are the type of resources obtained from organic matter like soil, coal, plants etc. which contain material like carbon. All other sources like air, sunlight and minerals are the non-biotic resources.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Which of the following is a natural resource?

  1. Cooked food

  2. Chocolate

  3. Forests

  4. Tea
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Natural resources are the substances which are obtain from the nature and produce large amount of energy. These resources are obtain from the nature. Forest is the only example among all which is a natural resource.
Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

'National Institute of Oceanography' is situated at

  1. Bombay

  2. Panaji

  3. Lucknow

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

'The National Institute of Oceanography' (NIO) has its headquarters at Panaji in Goa and regional centers at Kochi, Mumbai and Visakhapatnam. It is one of the 38 constituent laboratories of the 'Council of Scientific and Industrial Research' (CSIR), New Delhi. Thus, the correct answer is option B.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Which of the following is an anti-forest conservation activity?

  1. Economy in lumbering

  2. Clearfelling

  3. Preservation of fire

  4. Preservation of wild animals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Forest usually refers to an area of dense vegetation, where uncultivated plants grow and undomesticated animals live. Deforestation refers to tree felling and destroys the forests. Tree felling and clearing land for agricultural or other purpose is an anti forest activity. 

Clearfelling is the removal of all trees from an area chosen for harvesting.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Sal forests are found in which region of india?

  1. In western ghats

  2. North-eastern valley

  3. Nilgiri hills

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

Dehradun is the capital city of Uttarakhand in the northern part of India, located in the Garhwal region. It has tropical deciduous forests. Climate is warm with alternate wet and dry periods. Rainfall is 90 to 160 cm. Vegetation includes broad leaved trees, which shed their leaves during dry season e.g., Butea, Bombax, Shorea, Dalbergia etc.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Percentage of land covered by forests in India is

  1. 9 - 18%

  2. 18 - 27%

  3. 27 - 36%

  4. More than 50%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In India 6, 77,088 square kilometer of land is under forest cover. The figure was 30 percent at the beginning of 20th century. About 24% of Indian land is covered by forest.The 2013 Forest Survey of India states its forest cover increased to 69.8 million hectares by 2012.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Forests participate in

  1. Controlling pollution

  2. Prevention of soil erosion

  3. Maintenance of ecological balance

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forests have three important types of function as following :

  1. Productive functions (or economic uses) - Forests provide a number of articles of economic use e.g : wood, resins, alkaloids etc.
  2. Protective functions (or ecological uses) - Forest provide protection from radiation, heat, noise, besides providing protection against pollution and soil erosion.
  3. Regulative functions - Forests helps maintain ecological balance by participating in biogeochemical cycles, checking flood and droughts etc.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Silent valley has been preserved, as it has

  1. Recreational value

  2. Valuable timber plants

  3. Natural forest

  4. Rare plants and animals
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

India has three biodiversity hot spots Indo Burma, Western Ghats and Himalaya. Western Ghats occur along the western coast of India for a distance of about 1600 kilometers in Maharashtra, Karnataka, Tamil Nadu and Kerala extending over to Sri lanka. At low elevation up to 500 meters above sea level, the area contains tropical evergreen rain forests, while semi evergreen forests occur at a level of 500 meter to 1500 meters. Major centers of biodiversity are Agasthyamalai Hills, Silent Valley and Amambalam reserve. There is a high degree of endemism of rare plants and animals as well as richness of species of flowering plants, amphibians, reptiles, some mammals and butterflies.