The answer would be nicotine.
Nicotine is an addictive substance. The type of nicotine that is found particularly in tobacco is nicotiana tabacum. It comes from the nightshade family of plants. Other forms of nicotine can also be found in tomatoes, potatoes, green peppers, and eggplants. 
        
             
        
        
        
Answer:
D) Neurons
Explanation:
Your nervous system contains millions of nerve cells, called neurons. Neurons are highly specialised to transmit messages from one part of your body to another. ... Motor neurons, which pass instructions from your central nervous system to other parts of your body, such as muscles or glands.
 
        
             
        
        
        
1. Simple optical microscope. One lens. 
Disadvantage: Only Van Leeuwenhoek made them, and he's dead. 
Advantage: Worked pretty well. With them, Van Leeuwenhoek discovered protozoa and bacteria.
2. Compound optical microscope. Has both an ocular and objective lens. 
Disadvantage: limited resolution. Can resolve bacteria, but not smaller things like viruses. 
Advantage: can be used with live specimens (using phase contrast or polarized or other special illumination). 
3. Binocular dissecting microscope (optic). Has a pair of ocular and objective lenses, and supposedly presents a "3D" view of the specimen to the viewer (I was never able to see in 3D using these darn things). 
Disadvantage: Limited magnification 
Advantage: Can be used to perform surgery on small but not microscopic specimens, such as fruit flies. Is used in "microsurgery" in hospitals too. 
Hope this helps buddy!
        
                    
             
        
        
        
The answer is C. The axial tilt can affect the temperature and daylight.
        
             
        
        
        
Answer:
Explanation:which location and also send the diagram, but there some processes like evaporation, condensation etc.