Answer : Option CExplaination / Solution:
The age of rock is calculated on the basis of number of strata present.Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago. Having more number of strata means older the rock.
Q4.Oral contraceptives for the female containing non-steroidal preparation with very few side effects and high contraceptive value, “once a week pill”.
Answer : Option AExplaination / Solution:
Saheli is oral contraceptive for the female containing non-steroidal preparation with very few side effects and high contraceptive value. It is once a week pill.
Q5.A 2μF capacitor C1 is charged to a voltage 100 V and a 4 μF capacitor C2 is charged to a voltage 50 V. The capacitors are then connected in parallel. What is the loss of energy due to parallel connection?
Answer : Option AExplaination / Solution: Explanation here:(A) Initial energy The common potential after they are connected in parallel The final energy
Q6.Human genome project was closely associated with the rapid development of a new area in biology called as
Answer : Option DExplaination / Solution:
Human genome project was associated with the rapid development of new area of biology called as bioinformatics. This branch of biological science is used to known the sequence of gene on Chromosome of living organisms.
Q7.The period between fertilization and birth is called as
Answer : Option CExplaination / Solution:
The period between fertilisation of ovum till the birth of will developed baby is called gestation period. It is about 10 months in human female.
Q8.The relative stability of +1 oxidation state progressively increases for heavier elements. Choose one of the following haing most stable +1 oxidation state.
Answer : Option BExplaination / Solution: Due to inert pair effect Tl+1 (G-2) is most stable oxidation state.