..........is a primary consumer.

............ is the most important source of energy in any ecosystem.

Carbon dioxide is released into the atmosphere through ............. .

............. is a sedimentary cycle.

Oxygen is released in the process of

Tiger is a /an.......... .

Ecological Pyramid is called............

Find the odd man out: Nitrogen cycle, oxygen cycle, carbon cycle, phosphorus cycle.

Conversion of nitrogen compounds into gaseous nitrogen is called........ .

............is an important component of proteins and nucleic acids.

............. cycle is a gaseous cycle

The pattern of energy exchange in an ecosystem is called a ............... .

.......... is a secondary consumer.

.................. irst proposed the concept of Ecological Pyramid in 1927.

Most organisms cannot use the free form of ................. .

Find the odd man out: Frog, Owl, Squirrel, Fox

Fungi and other microbes are called..........

Conversion of ammonia into a nitrite and then nitrate is called..........

Flow of energy in an ecosystem is............ .

Find the odd man out: Photosynthesis, combustion, decomposition, corrosion.

Find the odd man out: Burning of fossil fuels, forest fire, respiration, volcanic activity.

Microbes which do not need oxygen are called...........

Find the odd man out: Grasshopper, squirrel, elephant, lion

Carbon atoms are circulated and recycled through ............ .

An intricate network of food chains is called...............

Amount of matter and energy .............. from the lowest level to the highest level.

The Indian Institute of Ecology and Environment, Delhi, has published........... .

Oxygen forms ......... of the atmosphere.

Plants convert carbon dioxide into .......... by the process of photosynthesis.

Find the odd man out: Photosynthesis, Nitrification, Ammonification, Denitrification.