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Tulika pia
Tulika pia
@tulika-pia
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Joined: Nov 6, 2020
Last seen: Dec 24, 2020
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Topics: 2124 / Replies: 0
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Topic
Some time back, Kulhadas, that is disposable cups made up of clay, were suggested as an alternative. Why Kulhads are not being used in trains now?
5 years ago
Forum
Our Environment
Replies: 0
Views: 441
Topic
What is the full form of CFC and UNEP?
5 years ago
Forum
Our Environment
Replies: 0
Views: 112
Topic
Which disease is caused in human beings due to depletion of ozone layer in the atmosphere?
5 years ago
Forum
Our Environment
Replies: 0
Views: 82
Topic
Why did United Nations act to control the production of chlorofluorocarbons (CFCs) used in refrigerators?
5 years ago
Forum
Our Environment
Replies: 0
Views: 189
Topic
Write the name and formula of a molecule made up of three atoms of oxygen.
5 years ago
Forum
Our Environment
Replies: 0
Views: 79
Topic
Define Ozone hole.
5 years ago
Forum
Our Environment
Replies: 0
Views: 65
Topic
Why does energy available at each trophic level diminish progressively?
5 years ago
Forum
Our Environment
Replies: 0
Views: 119
Topic
What happens when a harmful chemical enters a food chain?
5 years ago
Forum
Our Environment
Replies: 0
Views: 104
Topic
How much energy one trophic level gets from another?
5 years ago
Forum
Our Environment
Replies: 0
Views: 129
Topic
What happens to Sun’s energy that fall on green plants?
5 years ago
Forum
Our Environment
Replies: 0
Views: 77
Topic
What is a consumer?
5 years ago
Forum
Our Environment
Replies: 0
Views: 85
Topic
Write the full name of the group of compounds mainly responsible for the depletion of ozone layer.
5 years ago
Forum
Our Environment
Replies: 0
Views: 91
Topic
When plants are eaten by primary consumers, a great deal of energy is lost as heat to the environment and some amount goes in carrying out various life processes. State the average percentage of energy lost in this manner.
5 years ago
Forum
Our Environment
Replies: 0
Views: 273
Topic
Give an example to illustrate that indiscriminate use of pesticides may result in the degradation of the environment.
5 years ago
Forum
Our Environment
Replies: 0
Views: 78
Topic
What are the various steps in a food chain called?
5 years ago
Forum
Our Environment
Replies: 0
Views: 89
Topic
Which of the following belong to the first trophic level of a food chain? Grass, Grasshopper, Plants, Rat, Tiger
5 years ago
Forum
Our Environment
Replies: 0
Views: 151
Topic
In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer? Plants → Deer → Lion
5 years ago
Forum
Our Environment
Replies: 0
Views: 117
Topic
Consider the following food chain which occurs in a forest: Grass → Deer → Lion If 10000 J of solar energy is available to the grass, how much energy would be available to the deer to transfer it to the lion?
5 years ago
Forum
Our Environment
Replies: 0
Views: 453
Topic
In a food chain, 10,000 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?
5 years ago
Forum
Our Environment
Replies: 0
Views: 118
Topic
Name two decomposers operating in our ecosystem.
5 years ago
Forum
Our Environment
Replies: 0
Views: 104
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