Autumn colouration of leaves appears only in
Tropical regions
Deserts
Temperate deciduous plants
Deserts
- A habitat of long severe winters and growing season limited to a few months of summer constitutes
- What is the major constituent of biomass of an organism
- A pollutant is any substance, chemical or other factor that changes
- Plankton, Nekton and Itenthon are not the components of one of the following ecosystems:
- Vegetation in Delhi is predominantly
- Autumn colouration of leaves appears only in
- Desert plants are generally
- An American plant which had become a troublesome weed in India is
- In cities like Mumbai and Delhi, the major air pollutants are
- The biggest herbarium of India is
- Tropical evergreen forests are seen in
- . Biome is
- The least porous soil among the following is
- The source of energy in the ecosystem is:
- The nitrifying bacteria which oxidise nitrite to nitrates include
- Primary treatment of sewage means
- Soil particles arranged in order of increasing size are
- The first stage of plant succession on earth is called
- Water plants usually have
- Increasing accumulation of DDT in organisms of a food chain in higher trophic levels is known as
- Biologists celebrate 5th June as
- Mark which is true
- Smog is a common pollutant in places having
- First link in any food chain is green plant because
- One of these is a renewable source of energy:
- When young plants are grazed too heavily they get killed because
- Hie earliest settlers on barren lands are generally
- Humus is an example of
- Laterization is a process which results in the
- The best indicator of SO^2 pollution is