Answer:
A rock is a collection of minerals. In a cooling lava, mineral crystals do not have time to form and are very small. The chemical composition will be the same as if the magma cooled slowly. Existing rocks may be heated enough so that the molecules are released from their structure and can move around.
Explanation:
 
        
             
        
        
        
Answer:
Mangrove forest
Explanation:
Mangrove forest exist only in high saline environment. Lake is a closed type body of water so it is expected with the least variation of salinity.
 
        
             
        
        
        
According to simple diffusion. Molecules travel from high concentration to low. So it would be traveling into the cornea
        
             
        
        
        
Answer:
The cranial nerves are the set of 12 pairs of nerves which are originated from the brain. As they are responsible for some of the essential functions , such as vision, smell, and balance of the human body structure.
<u>The 12 pairs of the cranial nerves are as as under:</u>
- The olfactory nerve
- The optic nerve
- The oculomotor nerve
- The trochlear nerve
- The trigeminal nerve
- The abducens nerve
- The facial nerve
- The vestibulocochlear nerve
- The glossopharyngeal nerve
- The vagus nerve 
- The spinal accessory
- The hypoglossal nerve,
-  It is very hard for the students to remember all the names of the cranial nerves as we can just recall them by memorizing the device-<em>Old Opie Occasionally Tries Trigonometry And Feels Very Gloomy, Vague And Hypoactive.</em>
Explanation:
The optic chasma originates as one of the cranial nerves, as it serves for the function of vision sense in human body. The nerves are responsible for carrying the set of information and data from the retina of the eye to the brain. As the communication between the two regions or part of the body, as they hold the capacity to carry the charges or information from the retina of the eye towards the brain.