Daily Quiz June 4, 2026

Which among the following are components of Population Change

1.          Birth

2.          Death

3.          Migration

Select the correct code from the options given below:

Consider the following statements with reference to the demographic transition theory:

1. It explains changes in death, birth rates and population growth with respect to the process of growth and development.
2. First stage is characterised by high death rate and low birth rate
3. India currently passes through stage 3 of demographic transition.

Select the correct code from the options given below:

Which of the following are free living nitrogen fixers

1.          Beijemickia

2.          Nostoc

3.          Azotobacter 

4.          Rhizobium

5.          Frankia

6.          Nitrosomonas

7.          Nitrobacter

Which of the options given above is/are correct?

Consider the following statements regarding decomposition:

1. Decomposers are autotrophs.
2. Decomposition is largely an oxygen-requiring process.
3. Decomposition rate is slower if detritus is rich in lignin and chitin.

Which of the statements given above is/are correct?

Consider the following statements regarding energy flow in ecosystem

1. Sun is the only source of energy for all ecosystems on Earth
2. Energy level increases at every trophic level due to intake of energy from the food consumed.

Which of the statements given above is/are correct?