You may confuse two minerals by their colors so using streak is another way for showing their "true colors "
        
             
        
        
        
Explanation:
Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.
 
        
                    
             
        
        
        
The answer to this question is 
flatten
so the cloud must <u>flatten</u> eventually producing the galaxy s disk.
 
        
             
        
        
        
The approximate total distance Earth has traveled since its birth is 3.8×10²¹m.
The Earth moves in a circular orbit of radius <em>r</em> around the Sun and it takes 1 year to go once around the Sun. Thus in a year it travels a distance equal to <em>2πr, </em>which is the circumference of the Earth's orbit.
Therefore in <em>n</em> years that have elapsed, it would travel a distance <em>d</em> given by,

Substitute 3.14 for <em>π, </em>1.5×10¹¹m for <em>r</em> and 4×10⁹ for n.

Thus, the approximate total distance Earth has traveled since its birth is 3.8×10²¹m.
 
        
                    
             
        
        
        
Blank #1: hypothesis
Blank #2: experiment 
Complete statement: "When a hypothesis is proven wrong, scientists often begin by revising the hypothesis. After that, it's common for scientists to redesign the experiment."