Answer:
Natural, human made and human resources
Explanation:
Natural Resource: Resources which are obtained from nature are called natural resources. Some of the natural resources can be used directly, while for using some others we need the help of some technologies
Answer:
It's: The Empirical approach and relies on the observation and experimentation
Answer: visual accommodation.
Explanation:
As rays of light (near) comes into the eyes, the lens changes it shape in other to focus these rays on the retina. Accommodation involves constriction of the pupils, convergence and changing the refractory power of the lens.
Objects more than 6 metres away from the eyes are focused on the retina without adjustment of the lens or convergence of the eyes
I will state several true statements about van der waals interactions so you can match it up :
1. are intramolecular forces
2. are weaker than ionic or covalent bonds
3. are intermolecular forces
