Select Board & Class
Give six differences between biodegradable and non-biodegradable with examples???
Make a forest, grassland & a an aquatic food chain. Name the various trophic levels
Why forest is called biodiversity hotspot?
Why do we have a greater number of organisms at lower trophic levels?
sunlight-phytoplankton(400 kg) -zooplankton(40 kg) - smallfish(4 kg) - big fish(0.4kg)
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
list examples of photo autotrophs and chemo autotrophs
Study the food chain given below:
Grass ---- Sheep or goat --- Man
Algae ---- Fish ----- Man
Who is the ultimate sufferer of using pesticide like DDT on land and in water? Give reasons.
methods of disposal of non biodegradable waste
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?
what are the two main components of our environment ?
how does study of food chain of an area or habitat help us?
Draw and explain Khadin system of water harvesting.
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.
what is the full form of DDT ?
What will be impact on ecosystem if bacteria and fungi are removed from the environment?
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 hazardous materials have to be dealt with while disposing of electronic items? How would these materials affect the environment?
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?
how plastics are recycled. does the recycling process have an impact on the environment
What is the difference between saprophytes and decomposers?
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?
can we consider any group of organisms of primary importance why or why not?
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?
"energy flow in a food chain is unidirectional."justify this statement
What is slogan of chipko movement ?
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
which 2 tings become clear with energy flow diagram
What is biodiversity. Why it is important to conserve biodiversiy ?
the role of decomposers in the ecosystem?
ozone is deadly poisonous still it performs an essential function.
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??
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?
An aquarium is known as artificial ecosystem. Why?
what is the largest biological system in the world?
what is terrestrial ecosystem?
write characteristics of food web?
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?
What is biological magnification ? If the concertration of DDT were is 0.2 ppm in water of a lake ,what would be its likely concentration in fish in the following food chain ? Plankton --- Fish ---- Fish eating birds .
In this question how to calculate concentration of DDT ie.ppm (part per million)
Why are some substances biodegradable and some are non- biodegradable???
how long are various non biodegradable expected to last in our environment?
Compare a man with vegetarian food habits and the one with non-vegetarian food habits by making food chains. Which food habit is advantageous from the point of view of energy gain if amount is the same at the producer level? Give reasons.
Why are green plants called producers?
WHY IS WATER KNOWN AS :BLUE GOLD"
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?
Explain how ozone layer is formed in the atmosphere???? how does it protect living beings from harmful radiations of the sun ???
PREVENTION AND CONTROL MEASURES OF OZONE LAYER DEPLETION
why food chain generally consist 3 or 4 steps
Copyright © 2022 Aakash EduTech Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)