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Ashish Singh VERIFIED Edit Profile IB ACIO II- 2017 (Mains Qualified), UPSC aspirant Exam cleared-SSC CPO (2014), SSC CGL Tier (2016-Qualified for Mains), DSSSB (Mains) 17494 Views in last 30 days N290,033 Lifetime Views 63 Courses 9.9k Followers 28 Following Envlonment And Ecology NEWS 0 f By Ashish Singh By Ashish Singh By Ashish Singh (Hindi) 100 MCQ's on Environment and Ecology February 2019: The Hindu Daily Editorial and Prelims Based... Hindi) February, 2019 The Hindu Daily Editorial and Prelims... 5 Lessons 45 Lessons 44 Lessons
Q.1) Consider the following statements with respect to 'Stromatolites' 1. Stromatolites are created by 'blue-green algae'. 2. They are only found in Antarctica . Select the correct code: a. 1 Only b. 2 Only c. Both 1 and 2 d. Neither 1 nor 2
.They are layered mounds, columns, Solution (a) and sheet-like sedimentary rocks that were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe. Cyanobacteria, which are prokaryotes, are also called "bluegreen algae". Stromatolites are special rock-like structures. They usually form in shallow water. They are formed by bacteria such as cyanobacteria. There may also be other types of bacteria and single-celled algae. .Fossilized stromatolites provide records of ancient life on Earth. .Lichen stromatolites are a proposed mechanism of formation of some kinds of layered rock structure that are formed above water, where rock meets air, by repeated colonization of the rock by endolithic lichens. .
.Modern stromatolites are mostly found in hypersaline lakes and marine lagoons where extreme conditions due to high saline levels prevent animal grazing. One such location is Hamelin Pool Marine Nature Reserve, Shark Bay in Western Australia where excellent specimens are observed today, Pampa del Tamarugal National Reserve in Chile and another is Lagoa Salgada ("Salty Lake"), in the state of Rio Grande do Norte, Brazil, where modern stromatolites can be observed as bioherm (domal type) and beds Inland stromatolites can also be found in saline waters in Cuatro Ci negas, a unique ecosystem in the Mexican desert, and in Lake Alchichica, a maar lake in Mexico's Thie ntaly opien marine environment where modern stromatoltes are known to The only open marine environment where modern stromatolites are known to prosper is the Exuma Cays in the Bahamas. . .In 2010, a fifth type of Chlorophyll, namely Chlorophyll f was discovered by Dr. Min Chen from stromatolites in Shark Bay
. Q.2) 'Formosa Strait' is located in a. Mediterranean Sea b. West Asia c. Scandinavia d. South China Sea
Solution (c) . Gigha .Harbir Changchun. Kyrg It is the ancient Roman trade centre . Beijing inchuan Korea Golmud, Lanzhou Shanghai China s It is situated in the south of Puducherry on the right bank of Ariyankuppam River. . East Nopa Changsha- Sea Fuzhou Ganges F iamen Bangladoah India Vi Laos Bay ofvnma FORMOS
Q.3) 'Bagamoyo Port' which is being funded by China, is located in a. Ethiopia b. Djibouti c. Senegal d. Tanzania
The Bagamoyo Port is being constructed in Bagamoyo, Tanzania. Work started in 2018. SOMALIA KENYA amu It is planned to be one of the largest government TANZANIA a Mombasa infrastructure projects in the country Dodoma o aga ar es Salaam It will be built in association with the state- owned China Merchants Port, it will includea special economic zone The US$ 10bn project is backed by an Omani sovereign wealth fund The project is to cost US 11 billion and is mostly funded by a Chinese government owned construction firm The port is to handle twice the amount of cargo than Dar es Salaam Port and will help reduce the congestion at the port. . . .The project also involves itn The project is a tri-government venture between Tanzania, China and Oman the construction of a Special economic zone adjacent to the port .
.Q.4) Consider the following statements with respect to 'Bhaona' 1. It is primarily associated with Maharashtra 2. It is always with religious messages Select the correct statements a. 1 Only b. 2 Only c. Both 1 and 2 d. Neither 1 nor2
. Q.5) Consider the following statements with respect to 'Shark Bay' 1. It is a World Heritage Site 2. It is located in Yucat n Peninsula 3. It is known for large population of dugongs . Select the correct code: a. 1 and 2 b. 2 and 3 c. 1 and 3 d. All of the above
The property is also famous for its rich marine life including a large population of dugongs, and provides a refuge fora number of other globally threatened species . Carnarvon Shark Bay Oceanic waters Hamelin Pool Metahaline waters Hypersaline waters