Tag: evs

Questions Related to evs

A natural resource is a substance/commodity that is a gift of nature which is very useful to mankind.

  1. True

  2. False

  3. Nither

  4. Either


Correct Option: A

'Social foresty' aims at

  1. growing different types of plantations together

  2. growing one type of tree on the land

  3. management of forests by village bodies

  4. management of forests by cooperative societies.


Correct Option: C

The most rapidly dwindling natural resource in the world is forests.

  1. True

  2. False

  3. Nither

  4. Either


Correct Option: A

Which of the following is correct to show the utility of forests?

  1. Forests provide shelter to various kinds of species

  2. Forests help in water conservation

  3. Forests provide a wide variety of commercial product

  4. Forests do not help in the conservation of soil.


Correct Option: A,B,C

The following are stakeholders of forests which one of these causes the maximum damage to forest?

  1. People who live in or around the forest

  2. The industrials

  3. The wildlife and native enthusiasts

  4. The forest department of the government.


Correct Option: C

Which of the following statements is incorrect regarding biodiversity?

  1. Biodiversity deals with biological and geographical units such as genes, chromosomes, species, families and biogeographic religions.

  2. Biodiversity is an addition sum of genetic, taxonomic and ecosystem diversity.

  3. It is a measure of the amount of resources shared by the human population.

  4. None of these


Correct Option: C
Explanation:
  • Biodiversity refers to the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level.
  • It deals with biological and geographical units such as genes, chromosomes, species, families and biogeographic religions
  • It is an additional sum of genetic, taxonomic and ecosystem diversity.
  • Biodiversity is a measure of species richness i.e  The number of groups of genetically or functionally related individuals.
  • Hence Biodiversity is a measure of the number of resources shared by the human population is a wrong statement.
  • So, the correct answer is 'Option C'.

The term biodiversity is popularised by 

  1. Odum

  2. Paul Ehrlich

  3. Edward Wilson

  4. Tilman.


Correct Option: C
Explanation:

Biodiversity is the term popularised by the sociobiologist Edward Wilson to describe the combined diversity at all the levels of biological organisation.  

Among the ecosystem mentioned below where can one maximum biodiversity? 

  1. Mangroves

  2. Desert

  3. Coral reefs

  4. Alpine Meadows


Correct Option: C
Explanation:
Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. Ecosystem diversity is a type of biodiversity. It is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet. Biodiversity is important because it clears out our water, changes out climate, and provides us with food. Ecological diversity includes the variation in both terrestrial and aquatic ecosystems. Ecological diversity can also take into account the variation in the complexity of a biological community, including the number of different niches, the number of trophic levels and other ecological processes. A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Often called "rainforests of the sea", shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinoderms, sponges, tunicates and other cnidarians.
So the correct option is 'coral reefs'.

The difference between different living things with respect to their appearance and mode of life is called as

  1. Classification

  2. Biodiversity

  3. Evolotion

  4. All of the above


Correct Option: B
Explanation:

  • Biodiversity means the diversity of living forms. Different life forms have a different physical appearance. 
  • Some are tall, some are short and their mode of life is also different. For example, some are autotrophs some are heterotrophs, some organisms live in water or land or both.
Therefore, the correct answer is option B.