The density of water is approximately 1.0g/mL 
6.7g * 1 mL/ 1g = 6.7 mL
        
             
        
        
        
<h2>Answer</h2>
- Wind
- Sunlight
- Plants
- Soil
- Coal
- Minerals
- Water
- Animals

In short it's natural resources.
 
        
        
        
Answer:
true
Explanation:
Cerebrospinal fluids  is a  colorless fluid  that is secreted in the choroid plexus,and  circulates in the ventricles system  and sub -aranchinoid space  of the brain and spinal cord. its provides nutrients  to the surrounding  neurons, cushions the effects of trauma, pressure, acts as buffer and provides protection through immune  system .
it plays a vital role in regulating  blood flow, through a process called cerebral auto regulation,This is needed to maintain efficient cerebral blood flow of oxygen and other metabolites, and withdraw of metabolic wastes from the brain. 
in order to analyze it to diagnose some neurological diseases  its sample is usually taken out in a process called lumbar  puncture.
 
        
             
        
        
        
Isotretinoin maybe responsible for depression for depression and suicidal thoughts in the patient. Isotretinoin is very useful against acne, but it can have some severe side effects. Aside for the ones mentioned above, Isotretinoin can also cause birth defects in new-born babies if taken by pregnant women. Liver functionality and cholestrol levels might also be affected, so it is advised to use this medication only under extreme supervision of the doctor.