Where could we find phosphorous in human body?
a. Biological membranes, nucleic acids, shells and carbohydrates
b. Biological membranes, nucleic acids, shells, bones, teeth and cellular energy transfer systems.
c. Shells, bones, teeth, hair, nails and cellular energy transfer systems.
d. None of the above

Which is the natural reservoir of Phosphorous?
a. Ocean
b. Fossils
c. Rock
d. Soil

How do herbivores and other animals obtain Phosphorous?
a. From soil in the dissolved form
b. From plants
c. From drinking water
d. Synthesized in the body.

The waste products and the dead organisms are decomposed by ____________releasing phosphorus.
a. parasitic bacteria
b. phosphate-solubilising bacteria
c. phosphate-solubilising fungi
d. Acidic soil.

Match the following:
                  Column I                                                                                          Column II
(i). no respiratory release of element into atmosphere                                        1. Carbon cycle

(ii). atmospheric inputs of element through rainfall are much smaller.                  2. Phosphorous cycle

(iii). Gaseous exchanges of element between organism and environment are

negligible.

(iv). Human activities have significantly influenced the cycle

(v). According to one estimate 4 × 1013 kg of element is fixed in the biosphere

through photosynthesis annually.

a. 1- i and v; 2- ii, iii and iv
b. 1- iv and v; 2- i, ii and iii
c. 1- iv and iii; 2- i, ii and v
d. 1- i and ii, iii; 2- iv and iv

The products of ecosystem processes are named as-
a. Environment services
b. Ecosystem services
c. Ecosystem products
d. Ecosystem taxes

Who put the price tags on nature’s life-support services?
a. Robert may
b. John Ray
c. Robert Constanza
d. Reiter

How much price has been estimated by the researchers for the fundamental ecosystem services?
a. US $ 22 billion a year
b. US $ 33 trillion a year
c. US $ 40 trillion a year
d. US $ 52 million a year

What is the global gross nationalproduct GNPvalue?
a. US $ 16 trillion
b. US $ 18 trillion
c. US $ 24 trillion
d. US $ 26 trillion.

Out of the total cost of various ecosystem services, the soil
formation accounts for about
a.15%
b.25%
c.35%
d.50%