Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices that can be found from other sources:
<span>a. 10 electrons
b. 6 electrons
c. 12 electrons
d. 16 electrons
e. 8 electrons
</span>
Answer is 6 electrons. <span>The part with the two units of + charge is a cation; the part with the unit of - charge is an anion.</span>
        
             
        
        
        
Answer: b. Remains of formerly living things buried by sediments in regions with little oxygen.
Explanation:
Fossil fuels are underground geological fuel deposits which are formed from the decaying of organic materials (animals and plants) over hundreds of millions of years in the earth's crust, which furthur processed into coal, crude oil, heavy oils or natural gas by exposure to pressure and heat 
Fossil fules are present only in sedimentary rocks under litte oxygen the provide temperatures and pressures that do not kill fossil remains, unlike most igneousand metamorphic rocks. 
Hence, the correct option is b.
 
        
             
        
        
        
Answer:
It would have to be passive immunity
Explanation:
Because active immunity develops after being exposed to the pathogen and its not acquired either because its similar to active and it isn't inborn because that comes from your parents
 
        
                    
             
        
        
        
Answer:
oxygen gas
Explanation:
because oxygen is needed for life on Earth