Tag: evs

Questions Related to evs

India's biodiversity is in jeopardy and major reason for this is 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Population explosion

  2. Habitat destruction

  3. Pollution and animal poaching

  4. All of the above

Show answer
Correct Option: D
Explanation:

Biodiversity is the degree of variation of life. It is a measure of the variety of organisms present in different ecosystems. India is a mega diverse nation, housing around 10% of world's species. India also has a rich cultural heritage going back thousands of years. Much of Indian biodiversity is intricately related to the socio-cultual practices of the land. Unfortunately, due to population explosion, climate change and implementation of environmental policies, several species are facing the threat of extinction. Not only does this affect the food chain, but also the livelihood and the culture of millions of Indians, who depend on local biodiversity. Thus, the correct answer is option D.

Given below are a few statements related to biodiversity. Pick those that are correctly related to biodiversity 
(a)  Biodiversity refers to the different species of flora and fauna present in an area.
(b)  Biodiversity refers to only the flora of a given area.
(c)  Biodiversity is greater in a forest.
(d)  Biodiversity refers to the total number of individuals of a particular species living in an area.
Which of the above statements are correct?

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. (a) and (b)

  2. (b) and (d)

  3. (a) and (c)

  4. (b) and (c)

Show answer
Correct Option: C
Explanation:
Biodiversity refers to the variety of life. It is seen in the number of species in an ecosystem or on the entire Earth. Biodiversity gets used as a measure of the health of biological systems, and to see if there is a danger that too many species become extinct. It includes the variety in both, flora and fauna.
Forests are biodiversity hotspots. They are areas rich in biodiversity which are also the most threatened ones due to a high degree of exploitation and human interference.

Biodiversity of any given geographical region represents 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. The diversity in the organisms living in that region.

  2. The diversity in the organisms living in that region and regions nearby it.

  3. Endangered species found in the region.

  4. Genetic diversity present in the dominant species of the region.

Show answer
Correct Option: A
Explanation:

Biodiversity is the existence of a wide variety of plant and animal species in their natural environments, which is the aim of conservationists concerned about the indiscriminate destruction of rainforests and other habitats. Biodiversity is the degree of variation of life. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. 

Thus, the correct answer is option A.

The total number of species of plants, animals and microorganisms living on the Earth is called as

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity

  2. Flora

  3. Fauna

  4. Ecosystem

Show answer
Correct Option: A
Explanation:

Biodiversity is the term given to the variety of life on Earth. It is the variety within and between all species of plants, animals and micro-organisms and the ecosystems within which they live and interact. Thus, the correct answer is option A.

The term alpha diversity refers to 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Genetic diversity

  2. Community and ecosystem diversity

  3. Species diversity

  4. None of the above

Show answer
Correct Option: B
Explanation:

Whittaker's idea was that the total species diversity in a landscape is the gamma diversity and is determined by two different things, the mean species diversity in sites or habitats at a more local scale is an alpha diversity and the differentiation among those habitats is the beta diversity. 

Alpha diversity was defined by Whittaker (1972) as the species richness of a place. However, the practical development of this concept led to redefine the alpha diversity on the basis of the structure of the community. 
Thus, the correct answer is option B.

Biodiversity-rich areas are the 

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Hotspots

  2. Plants

  3. Animals

  4. None of the above

Show answer
Correct Option: A
Explanation:
A biodiversity hotspot is a region of the earth that is extremely biologically diverse. The forest serves as the reservoir of biodiversity containing different species of plants, animals and all other sorts of living organisms. Many forests include a very rich diversity of species including most rare and prior to extinct species. Thus, the correct answer is option A.

The variety of forms of life found in a region is called as

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity

  2. Flora

  3. Fauna

  4. Endemic

Show answer
Correct Option: A
Explanation:

Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species, and of ecosystems. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.

So, the correct answer is 'Biodiversity'.

Given below are a few statements related to biodiversity. Pick those that correctly describe the concept of biodiversity.

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Biodiversity refers to the different species of flora and fauna present in an area

  2. Biodiversity is greater in a forest

  3. Biodiversity refers to the total number of individuals of a particular species living in an area

  4. Both A and B 

Show answer
Correct Option: D
Explanation:

Biodiversity refers to the different species of flora and fauna present in an area. It is a term coined to describe the immense variety and richness of life on this planet. The word was coined in 1985 and during the 1990s has become very widely used in the scientific circles. So, the correct answer is option D.

Which of the following shows the maximum diversity?

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Algae

  2. Fungi

  3. Pteridophytes

  4. Bryophytes

Show answer
Correct Option: B

The term biodiversity implies only to organisms living in/on

evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

  1. Land

  2. Forest

  3. Water

  4. All of the above

Show answer
Correct Option: D
Explanation:

The term biodiversity means all life forms present all over the world, it implies to all organisms whether they live on land and water. Thus the correct answer is option D.