In grassland ecosystem the pyramid of energy is
upright
inverted
upright or inverted
none of these
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- The biggest herbarium of India is
- When young plants are grazed too heavily they get killed because
- Hydrilla is a
- Soil particles arranged in order of increasing size are
- The nitrifying bacteria which oxidise nitrite to nitrates include
- The ultimate source of energy for fish is
- Which of the following is normally not at atmospheric pollutant
- First link in any food chain is green plant because
- Autumn colouration of leaves appears only in
- Biologists celebrate 5th June as
- Commensalism is
- Which of the following functions performed by forests help most in controlling drought
- Deforestation may reduce the chances of
- The least porous soil among the following is
- Which one of the following is associated with the conservation of forest ?
- The best indicator of SO^2 pollution is
- Tropical evergreen forests are seen in
- A habitat of long severe winters and growing season limited to a few months of summer constitutes
- Competition for food, light and space is most severe in
- Radiation is a health hazard as it causes
- An area of soil is thoroughly wetted and allowed to drain until capillary movement of water is stopped.…
- Plankton, Nekton and Itenthon are not the components of one of the following ecosystems:
- Laterization is a process which results in the
- Mark which is true
- Vegetation in Delhi is predominantly
- In cities like Mumbai and Delhi, the major air pollutants are
- Correct definition of ecosystem is :
- The food chain in which microorganisms break down the energy-rich compounds synthesized by producers…
- Water plants usually have
- Carbon cycle includes