Environment & Biodiversity MCQs

Notes:
Lingambudhi Lake is a lake in the city of Mysore, Karnataka.

Notes:
Nagavara lake is located at Bengaluru.

Notes:
Sub-alpine Forests is found in the very high reaches of North Bengal hills with an altitude between 3000m-3700m in the Northern part of Darjeeling
district. The main sites of these forests
are Sandakphu, Sabarkum, Phalut, etc.

Notes:
Gases that trap heat in the atmosphere are called green house gases. Global Warming Potentials (GWPs) are used to compare the abilities of different green house gases to trap heat in the atmosphere. Carbon dioxide is used as the base for all the calculations, so its global warming potential is 1.2. The higher the GWP, the more heat the specific gas can keep in the atmosphere. Fluorinated gases : Chlorofluorocarbons, Hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride : are synthetic, powerful greenhouse gases that have highest heat trapping abilities. These gases are 1,000; 10,000 even 20,000 times more powerful than Carbon dioxide (CO2) at trapping heat and many can stay in our atmosphere for thousands of years.

Notes:
National Aeronautics and Space Administration (NASA) has developed a series of interactive maps and graphs to describe the global climate and how it has changed over time. They focus on 5 key climate indicators:
• carbon dioxide concentration
• global surface temperature
• Arctic sea ice
• land ice
• sea level

Notes:
Water is one of the abiotic factors that are nonliving chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. They affect living organisms in terms of growth, maintenance, and reproduction. A biotic factor is any living component that affects the population of another organism, or the environment.

Notes:
Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water. It can remove many types of dissolved and suspended species from water, including bacteria, and is used in both industrial processes and the production of potable water (Desalination of marine water). It is most commonly known for its use in drinking water purification plants particularly in countries of middle east.

Notes:
If the environmental lapse rate is greater than – 5.5 K/km, then there is some small amount of vertical turbulence and the atmosphere is said to be stable. It is also referred to as being sub-adiabatic.

Notes:
Kanchenzunga National Park is located in Sikkim. The park gets its name from the mountain Kanchenjunga which is 8,586 metres tall, the thirdhighest peak in the world. The park is known for animals like musk deer, snow leopard and Himalayan Tahr.

Notes:
Ecological sanitation is a sustainable system for handling human excreta, using dry composting toilets. This is a practical, hygienic, efficient and cost-effective solution to human waste disposal. With this composting method, human excreta can be recycled into a resource (as natural fertiliser), which reduces the need for chemical fertilisers.