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प्रश्न
What does garbage consist of?
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उत्तर
Garbage consists of leftover food, fruit, vegetable peels, fallen leaves of potted plants, waste paper, unwanted plastic objects, glass articles, metal objects, old wooden objects, rags, discarded shoes, sewage, etc.
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संबंधित प्रश्न
We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
Fill in the following blank with suitable word :
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.
Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?
The decomposers in an ecosystem ______.
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
Fill in the following blank with suitable word :
Grass → ........... → Human
Will the levels of biological magnification be different at different levels of the ecosystem?
What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
Bacteria and fungi are called decomposers.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
Give one example of a food chain in an aquatic ecosystem?
In a given food chain if the amount of energy at the fourth trophic level is 6 kJ, what will be the energy available at the producer level?
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
Define – Heterotrophs.
Differentiate between herbivores and carnivores.
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as
Use of several pesticides which results in excessive accumulation of pesticides in rivers of ponds, is a matter of deep concern. Justify this statement.
