Answer : Option AExplaination / Solution:
In oscillatory motion object moves to and fro about mean position periodically or after a particular interval of time.All oscillatory motions are periodic in nature.
Answer : Option CExplaination / Solution:
Net primary productivity (NPP) is equal to Gross primary productivity (GPP) minus Respiration loss (R). NPP is the available biomass for the consumption of heterotrophs in the ecosystem.
Q6.Hydrogen is the first element in the periodic table and has resemblance to alkali metals as well as with halogens. However, its placement in the periodic table has been a subject of discussion in the past. Currently hydrogen is placed in which group?
Answer : Option AExplaination / Solution:
H properties matches with alkali metal as well as halogens so it is placed separately
Q7.The superiority of the hybrid over either parent in one or more traits is
Answer : Option DExplaination / Solution:
Heterosis, hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. The adjective derived from heterosis is heterotic
Hybrid obtained from two different plants have one or more traits superior than either of parents.
Q8.Which of the following statements about bar magnets is correct ?
Answer : Option DExplaination / Solution:
As magnetic monopole does not exist. If we split the bar magnet into two pieces each part will have its own north and south pole.
Answer : Option DExplaination / Solution:
Biodiversity is the presence of diverse kinds of living organisms in a particular habitat. It is most frequently quantified as number of species in particular geographical region.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0