Tag: ecosystem

Quizzes (20) Questions (95)

Questions Related to ecosystem

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

According to Robert Constanza, 50% of the total cost for ecosystem services goes to

  1. Recreation

  2. Soil formation

  3. Nutrient cycling

  4. Climate regulation

  5. Habitat for wildlife
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Robert Constanza and his colleagues have very recently tried to put price tags on nature’s life-support services. Researchers have put an average price tag of US $ 33 trillion a year on these fundamental ecosystems services, which are largely taken for granted because they are free. Out of the total cost of various ecosystem services, the soil formation accounts for about 50 per cent, and contributions of other services like recreation and nutrient cycling, are less than 10 per cent each. The cost of climate regulation and habitat for wildlife are about 6 per cent each.
So, the correct answer is 'Soil formation'.
Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Multiple choice type.
The term "ecosystem" is derived from the Greek word "Oikos" meaning.

  1. Body weight

  2. Food

  3. House

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

The term ecosystem originates from the Greek root words oikos, meaning house or dwelling place, and systema, meaning a system or combined whole. Thus, oikos directly translates to house.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Free services provided to humans by ecosystems include

  1. control of atmospheric carbon dioxide concentration.

  2. prevention of soil erosion.

  3. filtering of pollutants from water and air.

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ecosystem services are the products of ecosystem processes. These services include conditions and processes by which the species are able to survive and sustain their life. 
  • Trees control atmospheric carbon dioxide concentration because they take up carbon dioxide and perform photosynthesis through which they release oxygen in the atmosphere. Hence, quality of air is maintained by ecosystems.
  • The roots of plants held the soil particles tightly which prevent soil erosion.
  • Plants filter out pollutants from water and air by trapping pollutants. They absorb pollutants from air and water in their tissues. 
Hence, all the statements given in the question are correct.
So, the correct answer is 'All of the above'.
Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

The establishment of Taj Trapezium Zone (TTZ) enshrines which among the following objectives?

  1. Protection from Pollution

  2. Tourism Development

  3. Economy Hub

  4. Transportation facilities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Taj Trapezium Zone (TTZ) was established to protect the Taj Mahal and surrounding monuments from air pollution caused by nearby industries.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

In which of the following universities "National Centre for Sustainable Coastal Zone Management" under the World Bank assisted Integrated Coastal Zone Management project is set up?

  1. Pondicherry University, Pondicherry

  2. Anna University, Chennai

  3. Utkal University, Bhubaneswa

  4. Andhra University, Visakhapatnam
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The National Centre for Sustainable Coastal Zone Management (NCSCZM) was established at Anna University in Chennai.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Aquatic ecosystem help in

  1. Reduce pollution

  2. Absorption of nutrients

  3. Recycle of nutrients

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The aquatic ecosystem is the interaction of biotic component and abiotic component in the water body. It serves important environmental services such as recycling of nutrients, water purification, attenuate floods, recharge groundwater and provides shelter to wildlife. Aquatic ecosystems are also used for human recreation, and are very important to the tourism industry, especially in coastal regions. 

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Which features are characteristic of insect-pollinated flowers?

  1. Bright petals, large feathery stigmas

  2. Bright petals, rough sticky pollen

  3. Large feathery stigmas, nectaries

  4. Small light pollen, nectarines
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Insect-pollinated flowers are large, have brightly coloured petals, often sweetly scented, usually contain nectar- to attract insects. Its pollen are often sticky or spiky - to stick to legs and body of  insects

So, the correct is 'bright petals, rough sticky pollen'