POLLUTANTS AND TROPHIC LEVEL

  Movement of these pollutants involves two main processes:   Bioaccumulation refers to how pollutants enter a food chain. there is an increase in concentration of a pollutant from the environment to the first organism in a food chain.   Biomagnification refers to the tendency of pollutants to concentrate as they move from one trophic … Read more

LAKE ECOLOGY

  Any – body of standing water, generally large enough in area and depth, irrespective of its hydrology, ecology, and other characteristics is generally known as lake. Ageing of Lakes The nutrient enrichment of the lakes promotes the growth of algae, aquatic plants and various fauna. This process is known as natural eutrophication. Similar nutrient … Read more

DMPQ-What is natural pest and disease control?

What is natural pest and disease control? Pests and diseases are part of the natural environmental system. In this system there is a balance between predators and pests. This is nature’s way of controlling populations. The creatures that we call pests and the organisms that cause disease only become ‘pest and diseases’ when their activities … Read more

DMPQ:-Write a short note on Blue Carbon Initiative?

UNEP’s Blue Carbon Initiative aims to develop a global partnership to advance the sound management of coastal and marine ecosystems in order to ensure that their carbon sequestration and storage functions are maintained, and emissions of greenhouse gases are avoided.  The initiative aims at achieving the following overall targets by 2025: Reversing the current trend … Read more

DMPQ- Write short note on Air quality Index.

It is a number used to communicate to the public how polluted the air currently is or how polluted it is forecasted to become. As AQI increases, an increasingly large percentage of the population is likely to experience increasingly adverse health effects.  Different countries have their own air quality indexes, corresponding to different national air … Read more

DMPQ: Write in brief on non-conventional sources of energy

Wind Energy India‘s wind power potential has been assessed at 48500 MW. The current technical potential is estimated at about 13 000 MW, assuming 20% grid penetration, which would increase with the augmentation of grid capacity in potential states. The state-wise gross and technical potentials are given below India is implementing the world’s largest wind … Read more

DMPQ- What do you mean by organic farming? What are its benefits?

Organic farming is an agricultural system that works in harmony with nature. It largely excludes the use of synthetic inputs (such as fertilizers, pesticides, hormones, feed additives etc.) and rely upon crop rotation, crop residues, animal manures, off-farm organic waste, mineral grade rock additives and biological system of nutrient mobilization and plant protection. Organic farming … Read more

FOREST ECOSYSTEM

    Forest ecosystem includes a complex assemblage of different kinds of biotic communities. Optimum conditions such as temperature and ground moisture are responsible for the establishment of forest communities. Forests may be evergreen or deciduous which are distinguished on the basis of leaf into broad-leafed or needle leafed coniferous forests in the case of … Read more

DMPQ-Write a short note on UNESCO

It is a global development agency with missions that include promoting sex education, literacy, clean water and equality for women. It is responsible for promoting peace, social justice, human rights and international security through International cooperation on educational, science and cultural programs. It has 195 member states and is based in Paris, France.It is known … Read more