Answer:Cities with warmer temperatures than the natural environments that surround them are called urban heat islands. Man-made materials such as pavement warm up quickly during the day. These surfaces radiate heat, causing air temperatures around the city to rise. Even after the sun sets each day, the surfaces hold onto their heat, making it more difficult for the temperature in the city to decrease. Urban heat islands can have a negative impact on the environment and on the people residing in affected cities.This is harmful to the health of the people that live in the city. Increased electricity usage is also associated with urban heat islands because people need more air conditioning and cooling due to the higher temperatures. Solutions to the heat effect issue center around ideas that would reduce city temperatures, such as heat-reflecting roofs, more green spaces, and the use of cool-pavement materials.
Explanation: i got 100 hundred percent so this was my answer
Answer:
One goal that the explorers had based on the exercept taken from the journal of Christopher Columbas was to convert them, not with force, but with gentle means. "I presented them with some red caps, and strings of beads to wear upon the neck.."
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Answer:
What crash the twin towers or???
Answer
Workers
Explanation:
The protection toward 'Vulnerable persons' according to The Common Rule (45 CFR 46, Sub part A) refers to the type of protection granted to Researches subjects that are not in their prime physical mental conditions. (For example, pregnant women or underage subjects)
'Workers' tend to be in adult age (older than 18) ,and considered to be healthy and psychologically sound (otherwise they will not be hired by their employers). Therefore, this group is not considered as 'vulnerable persons' and do not have specific protection form the common rule.