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Give six differences between biodegradable and non-biodegradable with examples???
Explain how ozone layer is formed in the atmosphere???? how does it protect living beings from harmful radiations of the sun ???
Make a forest, grassland & a an aquatic food chain. Name the various trophic levels
Why forest is called biodiversity hotspot?
What hazardous materials have to be dealt with while disposing of electronic items? How would these materials affect the environment?
In a food chain,if 10000 joules of energy is available to the producer,how much energy will be available to the secondary consumer to transfer it to the tertiary consumer
what are organic and inorganic substances?
list examples of photo autotrophs and chemo autotrophs
methods of disposal of non biodegradable waste
what are the two main components of our environment ?
What is the difference between saprophytes and decomposers?
Draw and explain Khadin system of water harvesting.
what is the full form of DDT ?
Give an example of aquatic food chain.
AC is preferred because :
it is cheap
it is easily reproducible
it is economical in transmission
it is not dangerous
If the regulations put in place to control the emission of these chemicals have succeeded in reducing the damage to the ozone layer.Has the size of the hole in the ozone layer changed in recent years?
trophic levels? Give an example of a food chain and state the
different trophic levels in it.
What is 10 percent law? Explain with an example how energy flows through different trophic levels.
wat are the advantages of disposable paper cups over disposable plastic cups?
Which level shows the maximum biological magnification? Why?
How can you help in reducing the problem of waste disposal? Give any two methods
What will be impact on ecosystem if bacteria and fungi are removed from the environment?
What is ozone layer and how does it affect the ecosystem?
Consider a food chain Grass - goat -tiger . If the tiger has 30 j of the energy available in this food chain . How much energy was orginally available for grass . Why ?
Suggest three ways to maintain a balance between environment and development to survive.
difference between detrivores,decomposers and scavengers.
we do not clean ponds or lakes, but an aquarium needs to be cleaned. why?
what are the advantages of cloth bags over plastic bags during shopping?
what will happen if we kill all the organism in one trophic level?
Describe any five modes of waste disposal?
Give any 2 -2 ways in which biodegradable and non biodegradable substances affects the environment?
All flesh is grass. Comment and explain with the help of an example.
"energy flow in a food chain is unidirectional."justify this statement
What is slogan of chipko movement ?
WHY IS WATER KNOWN AS :BLUE GOLD"
Write on the damage caused to forests by the following-
a) Building rest houses for tourists in national parks.
b) Grazing domestic animals in national parks.
c) Tourists throwing plastic bottles/covers and other litter in national parks.
which bacteria was found in river ganga water indicating contamination
What is biodiversity. Why it is important to conserve biodiversiy ?
the role of decomposers in the ecosystem?
Why do we need to use our environmental resources judiciously
whether leather is biodegradable or non-biodegradable
what limits the number of trophic levels in a food chain?
why food chains generally consists of three or four steps only?
are these two questions one nd the same?
what is biological magnification
What are the effects of non biodegradable substances on the environment??
how plastics are recycled. does the recycling process have an impact on the environment
can i have some slogans on reduce, reuse and recycle...pls @'-,-- ♥
how long are various non biodegradable expected to last in our environment?
the following constitute a food-chain?
wheat and mango
goat and human
cow and elephant
fish and goat
what is the largest biological system in the world?
what is terrestrial ecosystem?
why are crop fields known as artificial ecosystems?
Calculate the amount of energy that will be available to big fish in the following food chain , if 10000J of energy is available to small algae from the sun :
Small algae------------ Zooplankton------------- Fish------------ Big Fish
Give me whole solution.
write characteristics of food web?
Q1. Why some substances are degraded and others not?
Q2. Construct a food chain composing the following Snake, hawk,rats,palnts?
Q3. If all the wastes we generate is bio-degradable what impact may this have on the environment?
Q4. Write the harmful effect of ozone depletion.
Q5. What are decomposers and what is the importance of them in the ecosystem?
Q6. Why flow of energy is unidirectional whereas flow of nutrients is cyclic?
Q7. What will happen to grasslands if all the grazers are removed from there?
Q8. What is biological magnification and give its cause?
Q9. What limits the number of trophic levels in a food chain?
Q10. What will happen if decomposers are not there in the environment?
what is the impact of human activity on environment
If all waste we generate is biodegradable, what impact may this have on the environment?
How increasing demands for the energy adversely affect our environment?
these days new types of plastic which are said to be biodegradable are available what are they called and whether they do or do not harm the envionment?
Why are some substances biodegradable and some are non- biodegradable???
Why are green plants called producers?
Name any two biotic and abiotic components of ecosystem.
Briefly describe the food chain and food web and write why is the foodweb more real than food chain ? At least 3 points.
What would happen if there were no decomposers in the ecosystem?
in the food chain,
Grass ==> Deer ==> Lion
operating in a forest wgat will happen,
(i) if all lions are removed
(ii) if all deer are removed
(iii) if all ngrass is removed
PREVENTION AND CONTROL MEASURES OF OZONE LAYER DEPLETION
why food chain generally consist 3 or 4 steps
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