Environment

A xerophyte is a species of plant that has adaptations to survive in an environment with little liquid water such as a desert or ice- or snow-covered region in the Alps or the Arctic. Popular examples of xerophytes are cacti, pineapple, and some Gymnosperm plants. Xerophyte adaptations increase water intake, limit water loss, and store … Read more DMPQ- What is Xerophyte?

Coral bleaching happens when corals lose their vibrant colors and turn white. Corals are bright and colorful because of microscopic algae called zooxanthellae. The zooxanthellae live within the coral in a mutually beneficial relationship, each helping the other survive. But when the ocean environment changes—if it gets too hot, for instance—the coral stresses out and … Read more DMPQ-What is coral bleaching and what are the causes of coral bleaching?

Edge effect: Edge effects refer to the changes in population or community structures that occur at the boundary of two habitats. Trophic cascade: A trophic cascade is an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative population of Predator and prey through a food chain … Read more DMPQ- Explain the following terms: • Edge effect • Trophic cascade • Dieback

Environmental ethics is a branch of ethics that studies the relation of human beings and the environment and how ethics play a role in this. Environmental ethics believe that humans are a part of society as well as other living creatures, which includes plants and animals. These items are a very important part of the … Read more DMPQ-Explain the concept of Environment Ethics.

The Olive ridley turtles are the smallest and most abundant of all sea turtles found in the world, inhabiting warm waters of the Pacific, Atlantic and Indian oceans.They are best known for their unique mass nesting called Arribada, where thousands of females come together on the same beach to lay eggs.The species is listed as … Read more DMPQ- Write a short note on Arribada.

Seagrasses are flowering plants (angiosperms) which grow in marine environments. Seagrass can easily be confused with marine macroalgae (Seaweed). Seagrasses are considered vascular plants and have roots, stems and leaves. Sea grass produces flowers, seeds and fruits. Seagrass plays a vital role in oxygen production and absorption of carbon dioxide. It acts as a purifier … Read more DMPQ- What do you understand by “ Sea grass” and “ sea weed”?

Air Quality Early Warning Systemis designed to predict extreme air pollution events and give alerts to take necessary steps as per Graded Response Action Plan (GRAP) of the Government of India. The air pollution system has been developed jointly by the scientists at Indian Institute of Tropical Meteorology (IITM), Pune, India Meteorological Department and National … Read more DMPQ- Air quality is declining to a high proportion. In this context explain the system of Advanced Air quality early warning system.

Ecological efficiency is the amount of energy that is transferred from one trophic level to the next. It is defined as the energy supply available to trophic level N + 1, divided by the energy consumed by trophic level N. This follows the 10% rule, which states that roughly 10% of the energy at one … Read more DMPQ- What do you understand by the term Ecological efficiency?

Ramsar sites are created under Ramsar convention. It was signed in 1971 in the Iranian city of Ramsar and is one of the oldest inter-governmental accord for preserving the ecological character of wetlands. It is also known as the Convention on Wetlands.Its aim is to develop and maintain an international network of wetlands which are important for the conservation of global biological diversity and … Read more DMPQ- Recently 10 more wetlands in India declared as Ramsar sites. What is Ramsar site and explain its significance.

Food Security  Rising temperatures, heat extremes, floods, droughts and rainfall variability can disrupt rainfed agricultural food production and adversely impact crop yield.  For instance, as per a NITI Aayog document, of the total pulses, oilseeds and cotton produced in the country, 80% pulses, 73% oilseeds and 68% cotton come from rain-fed agriculture. Water Security Droughts … Read more DMPQ- . As per Global Climate Risk Index, India’s rank has worsened from 14th spot to 5th most vulnerable country to climate change. Discuss the implications of this report.