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Give six differences between biodegradable and non-biodegradable with examples???
Make a forest, grassland & a an aquatic food chain. Name the various trophic levels
What is the difference between saprophytes and decomposers?
Why forest is called biodiversity hotspot?
list the two criteria of measuring biodiversity of an area
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
All flesh is grass. Comment and explain with the help of an example.
list examples of photo autotrophs and chemo autotrophs
methods of disposal of non biodegradable waste
Why do we need to use our environmental resources judiciously
what are the two main components of our environment ?
Draw and explain Khadin system of water harvesting.
what is the full form of DDT ?
what are organic and inorganic substances?
Give an example of aquatic food chain.
trophic levels? Give an example of a food chain and state the
different trophic levels in it.
What is a biosphere ?
What is 10 percent law? Explain with an example how energy flows through different trophic levels.
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?
wat are the advantages of disposable paper cups over disposable plastic cups?
what is the largest biological system in the world?
what is terrestrial ecosystem?
What hazardous materials have to be dealt with while disposing of electronic items? How would these materials affect the environment?
How can you help in reducing the problem of waste disposal? Give any two methods
What is ozone layer and how does it affect the ecosystem?
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 is biodiversity. Why it is important to conserve biodiversiy ?
what will happen if we kill all the organism in one trophic level?
WHY IS WATER KNOWN AS :BLUE GOLD"
Describe any five modes of waste disposal?
Give any 2 -2 ways in which biodegradable and non biodegradable substances affects the environment?
"energy flow in a food chain is unidirectional."justify this statement
What is slogan of chipko movement ?
1)How can you say that a garden is a ecosystem?
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
the role of decomposers in the ecosystem?
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 is incerination?
What are the effects of non biodegradable substances on the environment??
can i have some slogans on reduce, reuse and recycle...pls @'-,-- ♥
the following constitute a food-chain?
wheat and mango
goat and human
cow and elephant
fish and goat
why are crop fields known as artificial ecosystems?
Identify which one of the following would have a hazardous impact if they persist in the environment for a long time: Newspaper, Vegetable Peels, Pesticides, Waste from cattle shed.
Why does O2 reacts with O to form O3 molecules? why are O3 molecules and not ions? Why is O# much more stable than O2?
write characteristics of food web?
what is the impact of human activity on environment
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?
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?
Why are some substances biodegradable and some are non- biodegradable???
how long are various non biodegradable expected to last in our environment?
Why are green plants called producers?
In which river is Tehri dam located ?
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?
PREVENTION AND CONTROL MEASURES OF OZONE LAYER DEPLETION
Differenciate between biodegradable and non biodegradable with respect to the effect of biological processes on them and the way they affect our environment.
why food chain generally consist 3 or 4 steps
1. If we use excessively pesticides to protect the crops from diseases, then it may cause long term damage to mankind, justify the statement.
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