It is an atom with a charge of 0 because a positive atom would be +1 charge and a negative atom would be -1 charge. So neutral would just be 0
        
             
        
        
        
It is only because of their life spand... its pretty short.
        
                    
             
        
        
        
Answer: Burning Fossil Fuels
Explanation: Technically getting rid of anything on this list would reduce greenhouse gas emissions burning fossil fuel releases 50 billion tonnes of CO2e each year texting on cellphones is estimated to emit 32,000 tons CO2e per year and eating meat is estimated to emit 3.3 tons of greenhouse gas emissions. 
 
        
             
        
        
        
The Hershey and Chase experiments showed that the inherited genetic material was DNA (deoxyribonucleic acids). In this experiment, the scientists labelled the DNA molecule with a radioactive isotope of phosphorus. 
Centrifugation causes the separation of different components according to their size. So, by blending, they centrifugated the mixture of virus and the bacteria, which separated the viral protein capsule and the bacteria. Later, they found that the virus infected bacteria contains the DNA of bacteria, not the protein. 
Hence, bacterial cultures infected with a virus were agitated in a kitchen blender to separate the protein coat of virus from the bacteria. 
 
        
                    
             
        
        
        
1.	Energy from the Sun ejects electrons from chlorophyll and splits water molecules to yield hydrogen ions.
Pigments inside the photosystems absorb light energy. Energy is transferred to reaction center, where electron is boosted at higher level. Electron is then passed to an acceptor molecule, replaced with an electron from H2O. and O2 is released.
2.	Electrons move down the electron transport chain, releasing energy that pumps hydrogen ions into the thylakoid space
Electron releases energy because it goes from a higher to a lower energy level.
3.	The concentration of hydrogen ions in the thylakoid space increase
Released energy of electrons drives pumping of hydrogen ions from the stroma into the thylakoid interior, building a proton gradient.
4.	Hydrogen ions diffuse across the thylakoid membrane into the stroma through ATP synthase.
The only way for hydrogen ions to move down the gradient is through ATP synthase.
5.	ATP synthase uses the energy released as hydrogen ions move from regions of high concentration to regions of low concentration to make ATP.  
ATP synthase is an enzyme that use proton gradient to make ATP from ADP and Pi.