« previous next »

Author Question: Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such ... (Read 15 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jul 13, 2018

Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such
  altitudes, the Tibetans are above roughly:a.
   10 of the air molecules in the atmosphere.
  b. 25 of the air molecules in the atmosphere.
  c. 50 of the air molecules in the atmosphere.
  d. 75 of the air molecules in the atmosphere.



Question 2

Since the turn of this century, CO2 in the atmosphere has:a.
   been increasing in concentration.
  b. been decreasing in concentration.
  c. remained at about the same concentration from year to year.
  d. disappeared entirely.



olderstudent

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 13, 2018
Answer to Question 1

c

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Using a sphygmomanometer to measure blood pressure. Using a sphygmomanometer to measure blood pressure.
human skin and pressure points human skin and pressure points
Palpating systolic blood pressure Palpating systolic blood pressure
Pressure is a result of the atmosphere’s mass. Pressure is a result of the atmosphere’s mass.
Physics - Density and Pressure Physics - Density and Pressure
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library