Introduction to EVS
The word Environment is derived from _______ which means _______.
Ans. Its derived from French word "Environer" means surroundings.
The term ecosystem is made up of two ______ words which means _________.
Greek word, which means "ecological sphere".
Chemical name for Nitrous Oxide and Carbon Monoxide.
NO2 and CO
In a code language, A is written as B, B is written as C and C is written D and so on... then how will BUSINESS be written in that code language?
Answer: CVTJOFTT
Is the edible mushroom a heterotroph or an autotroph?
It is heterotroph.
What is Environmental Studies?
EVS is Multidisciplinary academic field which systematically studies human interaction with the environment.
What are the 2 components of Ecosystem?
Abiotic
Biotic
What are Nuclear Hazards?
Nuclear hazards are threat posed by the invisible and odourless contamination of the environment by the presence of radioactive materials such as radio-nuclides in air water or soil.
a. Arrange the given in meaningful order (Ascending Order)
Byte, Megabyte, Kilobyte, Terabyte, Gigabyte
b. The Calendar of 2023 is the same as for the year ________.
a. Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
b. 2034
Which of the following component of the Ecosystem influences the survival of Living organisms up to a certain range?
A. Latitude
B. Temperature
C. Bacteria and fungi
D. Rainfall
B. Temperature
List out the components of Environment. Also mention what is it all about.
Atmosphere - layers of gases surrounding the planet.
Hydrosphere - is the total amount of water on the planet.
Lithosphere - is the outer mantle of the solid earth.
Biosphere - is the combination of hydrosphere and Lithosphere.
What are the sub-parts of Biotic components? Also mention the alternative names of it.
Producers also known as Autotrophs
Consumers also known as Heterotrophs
Decomposers also known as Saprotrophs
List out 2 Renewable and Non-Renewable sources of energy.
Renewable sources: Wind Energy, Solar Energy, Hydropower etc..
Non-Renewable sources: Fossil Fuels, minerals, Metals, Nuclear fuels etc..
a. Look at the series: 27, 64, 125, ... What number should come next?
b. What comes in the place of Question Mark(?) in the given series below?
2, 5, 11, 23, 47, ?, 191, 383
a. 216
b. 95
Plants → Autotrophs, Animals → Heterotrophs, Microbes → ? State how microbes accomplish their energy requirements.
Microbes → Saprophytes. They derive their energy from the remains of dead organic matter of animals and plants.
List out any 4 features of Atmosphere.
a. Its about 100km thick
b. Troposphere and Stratosphere together is called atmosphere.
c. It also contains A layer of ozone, which absorbs UV rays.
d. It absorbs IR rays emitted by the sun.
Mention 2 difference between Autotrophs and Heterotrophs.
a. Autotrophs - Produces food for themselves.
a. heterotrophs - depends on others.
b. Autotrophs - eg. Plants
b. Heterotrophs - eg. human Beings
List out 2 Effects and 2 causes of Air Pollution.
Effects
Respiratory Diseases, Cardiovascular Diseases, Climate Change etc..
Causes
Industrial Emissions, Vehicle Exhaust, Deforestation etc..
In certain code language BOTTLE is written as DQVVNG. How will NEXTER be written in that language.
Answer: PGZVGT
A food web is more realistic than a food chain for showing the feeding relationships in ecosystems because __________________________.
A. It compares the number of consumers to the number of micro-organisms in an ecosystem.
B. Food chains use only a small sampling of organisms.
C. A food web explains why there are more producers than consumers.
D. Producers are usually eaten by many different consumers and most consumers are eaten by more than one predator.
Producers are usually eaten by many different consumers and most consumers are eaten by more than one predator.
Justification
A food web is more realistic than a food chain for showing the feeding relationships in ecosystems because producers are usually eaten by many different consumers, and most consumers are eaten by more than one predator. This demonstrates the interconnectedness and complexity of the relationships between organisms in an ecosystem.
List out the Carrier Opportunities of EVS?
Industries
Consultancy
R & D
Academics
Green Marketing
Green Advocacy
NGO's
Justify why the climax phase is attained at a faster pace in secondary succession in comparison to the primary succession.
It is because of the availability of soil. Succession in primary succession begins from bare rocks which is a time-consuming process.
Is it true to say that exposure of radiations emitted during nuclear hazards damages cells, tissues and genes in the human body?
Yes, it affects living things, so it poses a health risk by damaging tissue and DNA in genes. It can also result in long-term health effects such as cancer and cardiovascular disease.
"DOUBLE CHANCE"
What is Global Warming? Also mention any 3 Causes.
'OR'
Anyone from the team sing a Song.
Global Warming refers to the long-term increase in earth's surface temperature.
Causes are:
CO2 Emissions, deforestation, CH4 Emissions, Industrial Process etc..
Define Producers, Consumers and Decomposers.
Producers: All autotrophs such as plants and other photosynthetic organisms that prepare their own food are called producers.
Consumers: All heterotrophs, including birds, animals, and other living organisms, which depend on producers and other organisms for food are called consumers.
Decomposers: All saprophytes, such as fungi and bacteria, which directly feed on the dead and decaying organic matter are called decomposers.