General Science - Online Test
Q1. The morphological changes are indicative of certain element deficiencies and are called
Answer : Option B
Explaination / Solution:
Deficiency symptoms are morphological changes in plants, indicating nutrient deficiency. Deficiency symptoms vary from one element to another.
Q2. Digestion can be defined as :
Answer : Option C
Explaination / Solution:
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.
In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.
Q3. Total internal reflection can take place only if
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. Aedesaegypti is a vector for
Answer : Option D
Explaination / Solution:
Dengue fever and yellow fever, both are transmitted to human beings through a mosquito called Aedesaegypti. This mosquito breeds in clean stagnant water and carry the disease causing virus form infected person to healthy person.
Q5. With respect to environment science, full form of SPM is;
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. Due to refractory period , a nerve fibre in human body on an average transmits about :
Answer : Option B
Explaination / Solution:
Refractory period is the time taken to nerve become ready to conduct other impulse. Due to this refractory period, a nerve fibre in human body on an average transmits about 1000 impulses per seconds.
Q7. compared to glass copper expands
Answer : Option C
Explaination / Solution:
The coefficient of linear expansion is more for copper then that of glass.
Q8. The general shape of APP in the short run is
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water bodies die because of :
Answer : Option C
Explaination / Solution:
Organic waste disposed in water bodies causes the death of fishes because bacteria present in them decompose the organic waste and consume oxygen in it leaving lesser oxygen for fishes and other aquatic animals for respiration.
Q10. Electronic configuration of Cu3+ is
Answer : Option B
Explaination / Solution:
Cu has atomic number 29.
