Answer:
Community trial type of study.
Explanation:
• Since 1945, fluoride was added to Newburgh's water supply.
• Water supply in Kingston was not fluoridated.
• The two communities were experiencing similar tooth decay condition.
• After 10 years, children from Newburgh experienced less tooth decay compared with their counterparts at Kingston, with no side effect on their health.
Answer:
The front view, is a drawing of the block, as if you are looking directly at the front of the object. The side view, is a drawing of the block, when it has been rotated so that one of its sides is now directly in view. The plan view, is a 'birds eye' view, from above.
The Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard (HCS) I think