gross primary productivity

Primary and Secondary Productivity - 'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity'. Primary production refers to all or any part ..

'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity..

The Gross Domestic Product(GDP) in 1993 was $6500 billion and in 1998, it was 50% more than the GDP in 1993. Estimate the GDP in 1998. => $9750 or $9870 or $9850 or None of the above..

Introduction - One of the primary objectives of agriculture is to produce food. In the entire history of agriculture, food production has remained a prime objectiv..

Introduction - One of the primary objectives of agriculture is to produce food. In the entire history of agriculture, food production has remained a prime objective. Human food needs have undergone many qualitative and quantitative modifications in the last 50 - 100 years. Mainl..

An alkyl halides or a benzyl halide reacts with ammonia to form primary secondary and tertiary amines. If ammonia is used in excess primary amine is the major product. Under these conditions in the reaction mixture, an alkyl halide is more likely to encounter and..

Following are the characteristics of the electrolysis process: 1) Electrolytic reactions involve the gain of electrons at the cathode and loss of electrons at anode. 2) The cathode reaction is a reduction reaction as the cations accept electrons, while the anode reaction is an oxidation reaction..

A) Warm summers and cold winters with well spaced rainfall of about 75 - 100 cm/year. B) Primary productivity is high, as is the decomposition rate in the forest floor. C) Trees are deciduous and shed leaves. D) Do not include a wide diversity of specie..

'The rate of organic matter build up or stored by producers in their bodies per unit time and area is called net primary production (NPP)'. \ GPP - Energy lost by respiration and maintenance = NPP The biochemical formula that describes photosynthesis is,..

Growth of Population - Population of a country should grow reasonably to match with growth in its gross domestic product to maintain the existing standard of living. Reducing growth or negative growth in population may be desirable if the standard of living should increase by mo..