Author Question: Compare and contrast the wind-chill factor and the heat index. What will be an ideal ... (Read 40 times)

michelleunicorn

  • Hero Member
  • *****
  • Posts: 565
Compare and contrast the wind-chill factor and the heat index.
 
  What will be an ideal response?

Question 2

Entrenchment of a channel occurs because
 
  A) a decrease in stream gradient occurs.
  B) a change in the bed load size-distribution occurs.
  C) the river flows from consolidated rock into a region composed of loose sediments.
  D) rejuvenation occurs due to uplift.
  E) isostatic downwarping of the crust occurs.



sokh

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

The wind chill factor quantifies the enhanced rate at which body heat is lost to the air. On cold, windy days, increased wind speeds can increase heat loss from the skin. The result is an apparent temperature cooler than the actual air temperature. The National Weather Service (NWS) uses a wind-chill temperature index to plot the wind chill factor, using actual air temperature and windspeed as the factors. Similarly, the NWS reports a heat index which uses temperature and relative humidity as factors to indicate likelihood of heat disorders. When humidity is low and windspeed is high on high temperature days, evaporative cooling help keep body temperature within appropriate range. However, on hot days with high humidity, coupled with low wind speeds, evaporative cooling is diminished and the risk of heat stress rises.

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

For a complete list of videos, visit our video library