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Which of the following is biodegradable waste?
Biodegradable substances are
Non-biodegradable substances are the substances which
Plastic, rubber, electronic waste are
A person buried a substance P in ground, after some days the substance was not there! What do you think had happened?
Ecosystem is _______
Which of the following is true
Organisms which can produce their own food are
Organisms that obtain food by eating other animals are
Which type of consumer goat is?
Ticks are classified as
Bacteria, fungi are
Which of the following can decompose complex organic substances into simple inorganic substances
Which of the following is abiotic component
Which of the following is food web
What is meant by trophic level
First trophic level belongs to
Which topic level Grasshopper belongs to?
How much percentage of energy plant obtain from sun and how much of their energy is transferred to next trophic level
Which of the following is false with respect to food chain
a.Energy go on continuously decreasing from producers to next trophic level
b.Energy transfer is always unidirectional
c.In Food web energy transfer can be bidirectional but in food chain it is unidirectional
What is meant by biological magnification?
The chemical concentration must be highest in
Ozone layer is important to life on earth because
Which of the following pollutant cause ozone depletion?
Which of the following is e-waste
Which of the following example correctly defines recycling of waste?
What is Incineration