Answer:
A pesticide made from a synthetic organic chemical. That is what a DDT is.
Explanation:
Anatomical and physiological barriers provide the crucial first line of defense against pathogens. These barriers include intact skin, vigorous mucociliary clearance mechanisms, low stomach pH and bacteriolytic lysozyme in tears, saliva and other secretions.
Cultural views: 'Cultural views are the views held by society in society to be reliable. We have individual views and also common beliefs.'
Example: 'Indians love hockey.' The comment can be dependable as many people do love hockey, but not everyone loves hockey.
The negative views of some beliefs.
Example 1: In many Asian nations, men holding hands is a mark of friendship. But in western nations that can be seen as a symbol of homosexuality.
