Answer : Option CExplaination / Solution:
Gibberellins also promote bolting (internode elongation just prior to flowering) in beet, cabbages and many plants with rosette habit.
Answer : Option DExplaination / Solution:
Import substitution advocates replacing foreign imports with domestic production. Its objective is to reduce domestic country's dependence on foreign country through the local production of industrialized products.
Answer : Option CExplaination / Solution:
Micropropagation is the technique of growing large number of plantlets using small parts of plants. Plant parts are totipotent or able to generate whole plant with small portion. This process is also called as tissue culture in which true type of plants.
Q5.Which of the following represents an incorrect feature of ecological succession:
Answer : Option AExplaination / Solution:
Ecological succession gradually results into gradual increase in the biomass as new species having complex plant body replace the older species. Thus, the biomass increase at each stage of succession.
Answer : Option AExplaination / Solution:
Inferential statistics allows us to draw conclusions from data that identify the best single value for representing a set of data.
Q8.Unemployment in rural areas can be divided into : (I) Seasonal Unemployment (II) Disguised unemployment (III) Industrial unemployment.
Answer : Option AExplaination / Solution:
Rural unemployment can be further classified into disguised and seasonal unemployment. Disguised unemployment is a a situation in which the number of workers engaged a job becomes much more than is actually required to complete it. Seasonal unemployment is an elevated level of unemployment that is expected to occur at certain parts of the year.
Q9.A rocket with a lift-off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 m s-2. Calculate the initial thrust (force) of the blast.
Answer : Option AExplaination / Solution:
Initial thrust = upthrust required to impart acceleration + uthrust to overcome gravity
i. The synovial joints ischaracterised by the presence of a fluid filled synovial cavity between the articulating surfaces of the two bones. ii. Saddle is a type of synovial joint
Answer : Option AExplaination / Solution:
Synovial joints are characterised by the presence of a fluid filled synovial cavity between the articulating surfaces of the two bones.
A saddle joint is a synovial joint where one of the bones forming the joint is shaped like a saddle with the other bone resting on it like a rider on a horse. Saddle joint (between carpal and metacarpal of thumb)
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0