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GPS originally designed for ? मूलतः जीपीएस डिज़ाइन किया गया ? |
| A) For direction of air
B) Real time and navigation
C) Temperature of water
D) Gravitational force
Correct Answer : Real time and navigation Explanation : The Global Positioning System (GPS) is a network of about 30 satellites orbiting the Earth at an altitude of 20,000 km. Once it has information on how far away at least three satellites are, your GPS receiver can pinpoint your location using a process called trilateration.
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Absolute humidity in air ? हवा में पूर्ण आर्द्रता ? |
| A) Remain constant at all altitudes
B) Increases at higher altitudes
C) Decreases at higher altitudes
D) None of these
Correct Answer : Decreases at higher altitudes Explanation : Humidity - or moist - is the water vapor present in air where commonly used terms are Absolute, Specific and Relative Humidity. |
Permanent hardess of water is due to? पानी की स्थायी कठोरता के कारण है? |
| A) Magnesium bicarbonate
B) Calcium bicarbonate
C) Calcium sulphate
D) Calcium hydroxide
Correct Answer : Calcium sulphate Explanation : Hard water contains dissolved magnesium and calcium ions. These make it more difficult for the water to form a lather with soap. Temporary hardness is caused by dissolved calcium hydrogencarbonate (which is removed by boiling). Permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling). |
Which they of irrigation system usually achieves to greatest "field water efficiency" ? "क्षेत्र की पानी दक्षता" मे वृद्धि कीस सिंचाई प्रणाली से प्राप्त कर सकते हैं? |
| A) Micro or drip irrigation
B) Level basin irrigation
C) Furrow irrigation
D) None of these
Correct Answer : Micro or drip irrigation Explanation : Drip (or micro) irrigation, also known as trickle irrigation, functions as its name suggests. In this system water falls drop by drop just at the position of roots. Water is delivered at or near the root zone of plants, drop by drop. This method can be the most water-efficient method of irrigation. if managed properly, since evaporation and runoff are minimized. The field water efficiency of drip irrigation is typically in the range of 80 to 90 percent when managed correctly. |
"World water day" is celebrated on? "विश्व जल दिवस" मनाया जाता है? |
| A) 16th September
B) 22nd march
C) 2nd February
D) 14th January
Correct Answer : 16th September |
What kind of energy does a wind turbine use? पवन टरबाइन का उपयोग किस प्रकार की ऊर्जा करता है? |
| A) Kinetic energy
B) Potential energy
C) Chemical energy
D) Thermal energy
Correct Answer : Kinetic energy |
Hydrogen can be stored as a? हाइड्रोजन एक के रूप में संग्रहीत किया जा सकता है:? |
| A) Compressed gas
B) Liquid
C) Metal hydride
D) All options are correct
Correct Answer : Compressed gas |
The term Biodiversity was coined by? जैव विविधता शब्द किसके द्वारा सर्वप्रथम प्रयोग किया गया था? |
| A) G. Rosen /जी. रोसन B) M. Calvin /एम. कै लिवन C) Mendel /मेंडल D) Hymen L.H /हाईमन एल.एच Correct Answer : G. Rosen /जी. रोसन Explanation : The term 'Biodiversity' was coined by Walter G. Rosen in the year 1985, a short version of 'Biological Diversity', which was introduced by Thomas Lov in 1980. |
Edaphic factor is related with? एडैफिक कारक किससे संबंधित है? |
| A) Wind /वायु B) Soil /मृदा C) Rainfall /वर्षा D) Temperature /ताप Correct Answer : Soil /मृदा Explanation : edaphic factor (salinity, pH, Na+, K+, Ca++, CaCO3, water holding capacity, and grain size) includes the physical, chemical, and biological properties of soil |
A grass land having Scattered trees is known as? घास के मैदान बिखरे हुए वृक्षों वाली भूमि को जाना जाता है ? |
| A) Plains /मैदान B) Prairies /प्रेरीज C) Pampas /पंपास D) Savannah /सवाना Correct Answer : Savannah /सवाना |
Who is known as the father of ecology in India? भारतीय पर्यावरण विज्ञान के जनक है? |
| A) Ramdeo Misra B) Ramdev Baba C) C.N.Rao D) H.G. Khurana Correct Answer : Ramdeo Misra Explanation : Ramdeo Misra (1908-1998) was known as the father of ecology in India for his contribution, he laid the foundation of ecology and environmental science in the country. |
The largest Mangrove forest of the world is ? विश्व का सबसे बड़ा मैंग्रोव(Mangrove) वन है? |
| A) Pichavaram Mangrove forest B) Godavari Krishna Mangrove forest C) Sundarban Mangrove forest D) Baratang Island Mangrove forest Correct Answer : Sundarban Mangrove forest Explanation : Sundarban is the largest mangrove forest in the world, which is spread across India and Bangladesh. It is the world’s largest natural river delta formed by the Ganges, Hooghly, Padma, Brahmaputra and Meghna rivers. |