The Sun is the primary source of energy for Earth's climate system is the first of seven Essential Principles of Climate Sciences. 
Principle 1 sets the stage for understanding Earth's climate system and energy balances.
 The Sun warms the planet, drives the hydrologic cycle, and makes life on Earth possible.
 
        
             
        
        
        
The process of making multiple copies of a gene by inserting it into a host genome and culturing the host is an example of gene cloning.