Author Question: On May 18, 1980, a massive eruption of Mt. St. Helens in Washington State sent a huge plume of ash ... (Read 61 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
On May 18, 1980, a massive eruption of Mt. St. Helens in Washington State sent a huge plume of ash more than 50,000 feet into the air. Over the next two weeks, the ash traveled around the world. To move that far, the ash would've had to
 
  A) dissolve in the nitrogen of the air.
  B) combine with moisture in the troposphere.
  C) bind to aerosols in the lithosphere.
  D) reach into the stratosphere.

Question 2

Efforts to limit global deforestation should be concentrated
 
  A) in the northern hemisphere.
  B) in South America, Indonesia, and Africa.
  C) wherever there is the greatest concentration of people.
  D) in regions with the highest production of agricultural crops.



Jordin Calloway

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

For a complete list of videos, visit our video library