Tag: halophiles

Questions Related to halophiles

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

Environmental Planning organisation is 

  1. CSlR

  2. CEPHERI

  3. ICAR

  4. NEERI

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The 'National Environmental Engineering Research Institute' (NEERI), Nagpur was established in 1958 as 'Central Public Health Engineering Research Institute' (CPHERI). Mrs Indira Gandhi, the then Prime Minister of India, renamed the Institute as 'National Environmental Engineering Research Institute' (NEERI) in the year 1974. 'National Environmental Engineering Research Institute' (NEERI), is devoted to research and innovations in environmental science and engineering, besides solving a range of problems posed by industry, government and public.

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

Conserving the environment means _______________.

  1. not destroying natural resources

  2. not lowering the quality of the environment

  3. changing natural resources from its original state

  4. preserving the condition of the nature that has been destroyed

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Conservation is the act of protecting and preserving the natural resources or biodiversity from being depleted by taking proper resource management measures. This helps in minimizing the destruction of our natural resources like cutting of trees or deforestation.

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 not true about biogas?

  1. It contains methane

  2. Burns without smoke

  3. Leaves ash behind

  4. Produced by anaerobic decomposition of animal and plant waste

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biogas is produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage or food waste. It is a clean and renewable gas. It burns without any smoke.

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 natural resources?

  1. Tea

  2. Cooked Food

  3. Air

  4. Coffee

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Natural resources are materials provided by the earth that humans can use to make more complex (human-made) products.

If we use a product directly as obtained from nature, they are termed as natural resources
Tea is not a natural resource but tea leaves are natural resources.
Cooked food is not a natural resource but raw food are natural resources.
Coffee beans are a natural resource, coffee is not natural resources.
Air, on the other hand, is available to us naturally and hence, 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

What type of energy does wind possess ?

  1. Potential energy

  2. Kinetic energy

  3. Solar energy

  4. Heat energy

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electric power.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles
  1. Which of the following is an indirect form of solar energy?
  1. Tidal energy

  2. Kinetic energy

  3. Potential energy

  4. Wind energy

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tidal energy is the indirect form of solar energy. Tides are the rise and fall of sea levels caused by the combine effects of the gravitational force exerted by the Moon and Sun and the rotation of the Earth. About 1% of the total solar radiation that reaches earth is converted into energy of wind. As the sun heats different parts of the earth at different rates, air circulates from cold to warm areas producing winds.

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

The in situ conservation of biodiversity is carried by India through

  1. National parks

  2. Biosphere reserves

  3. Wildlife sanctuary

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In situ conservation is on-site conservation or the conservation of genetic resources in natural populations of plant or animal species, such as forest genetic resources in natural populations of tree species. National parks, wildlife sanctuaries and biosphere reserves are examples for in-situ conservation.

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

The method used to conserve vegetatively propagating crops like potato is

  1. Ex situ conservation

  2. In vitro conservation

  3. Cryopreservation

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ex situ conservation is the conservation and maintenance of samples of living organisms outside their natural habitat, in the form of whole plants, seed, pollen, vegetative propagules, tissue or cell cultures.
In vitro techniques have been increasingly used for plants in the last 40-50 years. Conservation of genebank accessions is only one of several uses for the techniques. The basic procedure consists of conserving parts of plants in flasks or tubes in artificial media, under controlled environments, normally in sterile conditions. A prerequisite of successful in vitro conservation is that the plants or plant parts can be regenerated into complete plants for growth and use in any of the ways that genetic resources are used.
Cryopreservation or cryoconservation is a process, where cells, whole tissues, or any other substances susceptible to damage caused by chemical reactivity or time are preserved by cooling to sub-zero temperatures.
All these methods could be used to conserve vegetatively propagating crops.

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

In a gene bank, genetic material is stored in the form of the

  1. Seeds

  2. Vegetative materials

  3. Both A and B

  4. None of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gene banks are a type of biorepository, which preserve genetic material. For plants, this could be by freezing cuttings from the plant or stocking the seeds (e.g., in a seedbank). 

For animals, this is the freezing of sperm and eggs in zoological freezers until further need. With corals, fragments are taken which are stored in water tanks under controlled conditions. 

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

Phytotron is a device by which 

  1. Electrons are bombarded

  2. Protons are liberated

  3. Plants are grown in controlled environment

  4. Mutations are produced in plants

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A phytotron is an enclosed research greenhouse used for studying interactions between plants and the environment. Phytotrons are chambers, that provide controlled environmental conditions for growing plants. Phytotrons have been extensively used for research on how various environmental factors affect plant growth and development.