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प्र: Which pair of atoms has the highest electronegativity difference?   (Calcium's electronegativity is 1.0 Fluorine's electronegativity is 4.0 Hydrogen's electronegativity is 2.2 Sodium's electronegativity is 0.93) 3288 0

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    F-F
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    Ca-F
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    H-F
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    Na-F
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उत्तर : 4. "Na-F"
व्याख्या :

Answer: D) Na-F Explanation: F-F = 4 - 4 = 0 Ca-F = 4 - 1 = 3.0 H-F = 4 - 2.2 = 1.8 Na-F = 4 - 0.93 = 3.07   Hence, the highest electronegativity difference is in Na-F.

प्र: The highway transportation system is coordinated by 1794 0

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    Department of Transportation
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    Your local police department
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    The Department of Education
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    The Internal Revenue Service
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उत्तर : 1. "Department of Transportation"
व्याख्या :

Answer: A) Department of Transportation Explanation:

प्र: 80% of 900 + 162 x 4 x ? = 113 - 99 3087 0

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    0.5
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    1
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    4
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    0
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उत्तर : 1. "0.5"
व्याख्या :

Answer: A) 0.5 Explanation: 80x900/100 + 256 x 4 x ? = 1331 - 99 720 + 1024 x ? = 1232 ? = 1232 - 720/1024 ? = 512/1024 = 0.5 ? = 0.5

प्र: Who wrote the social contract? 1967 0

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    Jean-Jacques Rousseau
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    Immanuel Kant
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    John Locke
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    Voltaire
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उत्तर : 1. "Jean-Jacques Rousseau"
व्याख्या :

Answer: A) Jean-Jacques Rousseau Explanation: Jean-Jacques Rousseau (1712–1778), in his influential 1762 treatise The Social Contract, outlined a different version of social contract theory, as the foundations of political rights based on unlimited popular sovereignty.

प्र: To what kingdom do common bacteria belong 1887 0

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    Archaea
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    Protista
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    Eubacteria
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    All the above
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उत्तर : 3. "Eubacteria"
व्याख्या :

Answer: C) Eubacteria Explanation: There are two kingdoms of bacteria. They are 1. Eubacteria  and  2. Archaea   The members of these two kingdoms appear similar in shape and appearance, even under the extreme magnification of the electron microscope . However, they are very different from each other in a number of molecular and biochemical aspects. It is these differences that have resulted in the microorganisms being grouped into separate kingdoms.   For example, eubacteria contain the rigid, stress-bearing network known as the peptidoglycan . The only exceptions are the bacteria from the genera Mycoplasma and Chlamydia. Archaebacteria do not contain peptidoglycan. Instead, they contain a different structure that is called pseudomurein.   The common bacteria belongs to Eubacteria kingdom.

प्र: How many times can you subtract 10 from 100? 6785 0

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    9 times
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    10 times
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    1 time
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    0 times
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उत्तर : 3. "1 time"
व्याख्या :

Answer: C) 1 time Explanation: How many times can you subtract 10 from 100, for this if we go through logically, it is only 1 time. For the first time if we subtract 10 from 100, then there will no 100 to subtract from.   Hence, it is only 1 time we can subtract 10 from 100.

प्र: 6 B in an O? 2513 0

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    6 books in an order
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    6 balls in an over
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    6 bats in an odd
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    None of the above
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उत्तर : 2. "6 balls in an over"
व्याख्या :

Answer: B) 6 balls in an over Explanation: 6 b in an o means 6 balls in an over in cricket.

प्र: What role does photosynthesis play in the carbon cycle? 874 0

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उत्तर :
व्याख्या :

In the process of photosynthesis, plants need the sun's energy, water to make food for themselves in the form of ATP ( adenosine triphosphate ) , which is packages of energy. Carbon : coming into the plants ( or algae ) along with water make those ATP into a bigger molecule, which is know as glucose. Formula: 6 CO2 + 6 H2O + Suns Energy -> glucose + oxygen Photosynthesis has an affect on the carbon cycle because it reduces the amount of CO2 in the air and redirects it into sugars which feeds animals as well as humans.   Hence, Photosynthesis removes CO2 from the atmosphere and replaces it with O2.

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