Q3.Reducing potentially hazardous waste through smarter productions is called :
Answer : Option DExplaination / Solution:
Metathesis is the method developed by noble prize winning trio, Chauvin, Grubbs and Schrock. It is a method in organic synthesis in which a certain group of atoms are rearranged in a molecule so that a molecule with lesser harmful effect is produced.
Q5.A researcher finds the value of correlation coefficient to be .40 between personal income and the number of years of college completed. Based upon this finding he can conclude that
Answer : Option BExplaination / Solution:
A positive value of correlation coefficient implies that high value of one variable will correspond to a high value of another variable and vice versa.
Q6.The Planning Commission has defined the poverty line on the basis of recommended nutritional requirement of ____ calories per person per day for urban areas
Answer : Option CExplaination / Solution:
In India, defining a poverty line has been a controversial issue, especially since mid-1970s when the first such poverty line was created by the erstwhile Planning Commission. It wasbased on minimum daily requirement of 2,400 and 2,100 calories for an adult in rural and urban areas, respectively.
Answer : Option CExplaination / Solution:
Archegoniophore (female gametophytes ) develop on the thallus of Marchantia. Each archegonium produces a single egg cell which helps in sexual reproduction.
Q8.The vacuoles are bound by the single membrane is called as
Answer : Option AExplaination / Solution:
The vacuole is bound by a single membrane called tonoplast. In plant cells the vacuoles can occupy up to 90 per cent of the volume of the cell. In plants, the tonoplast facilitates the transport of a number of ions.