Question : An ecosystem consists of:

Option 1: producers, consumers and decomposers in a particular area.

Option 2: all the plants and animals of an area.

Option 3: a living community and its environment.

Option 4: carnivorous and herbivorous of an area.

Question : Which of the following represents the most complex trophic level?

Option 1: Community

Option 2: Population

Option 3: Ecosystem

Option 4: Species

Question : The Security Council of UN consists of

Option 1: 5 permanent and 10 non-permanent members

Option 2: 10 permanent and 5 non-permanent members

Option 3: 15 permanent members

Option 4: 15 non-permanent members

Question : The birth rate measures the number of birth during a year per

Option 1: 100 population

Option 2: 1000 population

Option 3: 10000 population

Option 4: 100000 population

Question : What do you mean by 'Density of Population' ?

Option 1: Ratio of People living below poverty line to total population

Option 2: Number of persons live per square kilometre

Option 3: Number of persons in a city

Option 4: Number of persons living per kilometre