1. Nanjarayan Bird Sanctuary recently got Ramsar status, it is located in which state?
a) Madhya Pradesh
b) Tamil Nadu
c) Karnataka
d) Assam
Answer. b) Tamil Nadu.
India has added three new wetlands—Nanjarayan Bird Sanctuary ( Tamil Nadu), Kazhuveli Bird Sanctuary (Tamil Nadu), and Tawa Reservoir ( Madhya Pradesh)—to its list of Ramsar sites, bringing the total to 85.
2. Which one of the following is used to prepare a natural mosquito repellent? ( UPSC 2021)
a) Congress grass
b) Elephant grass
c) Lemongrass
d) Nutgrass
Answer. c) Lemongrass
3. The ‘Common Carbon Metric’, supported by UNEP, has been developed for ( UPSC 2021)
a) Assessing the carbon footprint of building operations around the world
b) Enabling commercial farming entities around the world to enter carbon emission trading
c) Enabling governments to assess the overall carbon footprint caused by their countries
d) Assessing the overall carbon footprint caused by the use of fossil fuels by the world in a unit of time
Answer. a) Assessing the carbon footprint of building operations around the world
The Common Carbon Metric Protocol was developed by the United Nations Environment Program’s Sustainable Buildings and Climate Initiative.
4. What is blue carbon? ( UPSC 2021)
a) Carbon captured by oceans and coastal ecosystems
b) Carbon sequestered in forest biomass and agricultural soils
c) Carbon contained in petroleum and natural
d) Carbon present in the atmosphere
Answer. a) Carbon captured by oceans and coastal ecosystems is known as blue carbon.
5. Which one of the following is a filter feeder? ( UPSC 2021)
a) Catfish
b) Octopus
c) Oyster
d) Pelican
Answer. c) Oyster.
Filter feeders are a subgroup of suspension-feeding animals that feed by straining suspended matter and food particles from water.
Clams, krill, sponges, oysters, baleen whales, and numerous fish are some filter feeders.
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