Which of the following is the first trophic level in the food chain?

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Herbivores

Carnivores

Green Plants

All of the above

Which of the following is the correct order for a simple food chain?

grasshopper, sparrow, grass, hawk

grass, grasshopper, sparrow, hawk

hawk, sparrow, grass, grasshopper

grass, hawk, grasshopper, sparrow

Considering the Earth's ecosystem, the consumers are classified as

autotrophs

heterotrophs

tertiary autotrophs

secondary autotrophs

The lakes and forests are best classified as examples of

artificial ecosystem

natural ecosystem

natural biosphere

artificial biosphere

Consider the following statements: 1. A food web shows the main food links and interconnection of many food chains 2. Ecological Efficiency denotes ratio between energy flows at different points along a food chain Which among the above is / are correct statements?

Only 1

Only 2

Both 1 & 2

Neither 1 nor 2

A grasshopper eats plants, rabbit eats grasshopper and a hawk eats the rabbit. The position of grasshopper in the given food chain is of:

Primary producer

Primary consumer

Secondary consumer

Tertiary consumer

What is / are the difference(s) between an Ecosystem and a Biome? 1. An ecosystem comprises biotic as well as abiotic components , while a biome has only biotic components 2. An ecosystem is generally larger part of Biosphere, while a Biome is a smaller part. Which among the above statements is/ are correct?

Only 1

Only 2

Both 1 & 2

Neither 1 nor 2

The minerals are used as nutrients by

decomposer

producer

consumer

autotrophs

The landslides, global warming, floods, and soil erosions are all the effects of

deforestation

afforestation

overpopulation

global warming

The food chain in which the micro- organism feed by decomposing the organic matter is called-

Detritus food chain

Primary food chain

Secondary food chain

None of the above

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