question_answer

Consider the following statements and select the correct answer using the code given below:

1. The non-living components set the stage for the operation of the ecosystem.

2. The duration of Sun exposure is the photo-period.

3. Along the equator, days are almost 12 hours in length throughout the year.

A) 1 and 2 are correct       

B) 1 and 3 are correct

C) 2 and 3 are correct      

D) 1, 2 and 3 are correct