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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
List two criteria of measuring the biodiversity of an area.
5 years ago
Forum
Our Environment
Replies: 0
Views: 88
Topic
The following organisms form a food chain. Which of these will have the highest concentration of non-biodegradable chemicals? Name the phenomenon associated with it. Insects, Hawk, Grass, Snake, Frog.
5 years ago
Forum
Our Environment
Replies: 0
Views: 158
Topic
Which of the following are always at the second trophic level of the food chains? Carnivores, Autotrophs, Herbivores
5 years ago
Forum
Our Environment
Replies: 0
Views: 87
Topic
The first trophic level in a food chain is always a green plant. Why?
5 years ago
Forum
Our Environment
Replies: 0
Views: 94
Topic
What will be the amount of energy available to the organism of the 2nd trophic level of a food chain, if the energy available at the first trophic level is 10,000 joules?
5 years ago
Forum
Our Environment
Replies: 0
Views: 100
Topic
Why are green plants called producers?
5 years ago
Forum
Our Environment
Replies: 0
Views: 83
Topic
Name any two man-made ecosystems.
5 years ago
Forum
Our Environment
Replies: 0
Views: 94
Topic
List two biotic components of a biosphere.
5 years ago
Forum
Our Environment
Replies: 0
Views: 97
Topic
List two natural ecosystems.
5 years ago
Forum
Our Environment
Replies: 0
Views: 86
Topic
Name few biodegradable substances you generate.
5 years ago
Forum
Our Environment
Replies: 0
Views: 135
Topic
What is biodegradable plastic?
5 years ago
Forum
Our Environment
Replies: 0
Views: 88
Topic
Why is plastic called non-biodegradable?
5 years ago
Forum
Our Environment
Replies: 0
Views: 80
Topic
How should we dispose waste?
5 years ago
Forum
Our Environment
Replies: 0
Views: 74
Topic
Why should biodegradable and non-biodegradable wastes be discarded in two separate dustbins?
5 years ago
Forum
Our Environment
Replies: 0
Views: 89
Topic
Select two non-biodegradable substances from the following wastes generated in a kitchen: spoilt food, paper bags, milk bags, vegetable peels, tin cans, used tea leaves.
5 years ago
Forum
Our Environment
Replies: 0
Views: 74
Topic
Why is it necessary to conserve our environment?
5 years ago
Forum
Our Environment
Replies: 0
Views: 84
Topic
We often use the word environment. What does it mean?
5 years ago
Forum
Our Environment
Replies: 0
Views: 245
Topic
Column I - Column II 1. Producers - (i) Suspended 2. Primary consumers - (ii) Group of colours 3. Secondary consumers - (iii) Scattering 4. Decomposers - (iv) Changing
5 years ago
Forum
Our Environment
Replies: 0
Views: 217
Topic
The disposal of wastes by putting it in low-lying areas of ground and covering it with earth is called landfill. (True/False)
5 years ago
Forum
Our Environment
Replies: 0
Views: 100
Topic
Disposal of waste means recycling of wastes. (True/False)
5 years ago
Forum
Our Environment
Replies: 0
Views: 126
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