General Science - Online Test
Q1. The teeth occur in human beings are
Answer : Option A
Explaination / Solution:
Each tooth is embedded in a socket of jaw bone called thecodont. Human being forms two sets of teeth during their life temporary milk or deciduous teeth replaced by a set of permanent or adult teeth called diphyodont. An adult human has 32 permanent teeth which are of four different types called heterodont.
Q2. Light rays from a point object
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. The disease causing microorganisms are called
Answer : Option A
Explaination / Solution:
A number of bacteria, fungi, virus etc. cause disease in human beings. These disease causing microbes are called pathogens.
Q4. What percentage of land area should remain covered by forest to maintain Ecological balance?
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Nissl’s granules are absent in :
Answer : Option B
Explaination / Solution:
Nissl’s grains are mainly present in cyton and dendrite. These granules are rough endoplasmic reticulum with rosettes of free ribosome, the site for protein synthesis. It is absent in axon.
Q6. Heat is a form of
Answer : Option C
Explaination / Solution:
Heat is the amount of energy flowing from one body of matter to another spontaneously due to their temperature difference.
Q7. production function shows
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Chemical species present in the environment are either naturally occurring or generated by human activities. The study of their interaction with and effects on the environment is called as:
Answer : Option C
Explaination / Solution:
Environmental chemistry basically deals with the origin, transport, reaction and effects of various chemical species of natural or human origin in the environment. It is a part of environmental studies that deals with all other aspects and interactions of environment.
Q9. The f – block elements are known as
Answer : Option D
Explaination / Solution:
F block elements are known as inner transition elements.
Q10. Following are the elements of correlation except
Answer : Option B
Explaination / Solution:
It is not necessary that there must be a curvilinear relation among variables,it can be linear or non linear correlation.
