Ecology and Ecosystem - Environment and Ecology quiz 1 is a free online quiz challenge under Ecology and Ecosystem - Environment and Ecology category. There are 59 free online quiz challenges available in Environment and Ecology category
Pick the correct sequence of sulphur cycle.1. Oxidation of H2S2. Reduction of sulphate to sulphide3. Incorporation of sulphide into organic compund4. Mineralisation of organic sulphur into organic forms
Government of India in July, 2011 gave its nod for accepting international regulations for prevention of air pollution emanating form ships. In this regard, which of the following statements is/are correct?1. According to the regulations,limits have been set on sulphur oxide and nitrogen oxide emissions form ship exhausts.2. India is the first country to ratify to the convention for the prevention of pollution form ships of the international maritime organisation.Select the correct answer using the codes given below
Consider the following statements and choose the correct answer form the codes given below1. Soil erosion is the destruction of the upper layer of the soil by natural factors.2. General erosion is one when there is 25% less erosion of the land soil.3. Sheet erosion is caused when the upper fertile layer of the land is eroded by air or water.
Transfer to energy from on organism to another in an ecosystem takes place in a
The ecological pyramid that is always upright is
Consider the following about BOD1. BOD stands for Biotic Oxygen Demand.2. The quality of organic pollutant in water can be determined by measuring BOD.3. When huge amount of sewage is dumped into river, the BOD will increase.Which of the statements given above is/are true?
Which one of the following organisms is likely to show the highest concentration of DDT, one it has been introduce into the ecosystem?
The pyramid of biomass will be inverted in the ecosystem of
An ecosystem is a/an
What forms the first trophic level in any ecosystem?