Author Question: On May 18, 1980, the volcano Mount St. Helens in Washington State erupted, devastating life and ... (Read 19 times)

P68T

  • Hero Member
  • *****
  • Posts: 509
On May 18, 1980, the volcano Mount St. Helens in Washington State erupted, devastating life and landscape for over 200 mi2 through ash falls, lahars, and other pyroclastic deposits.
 
  Explain how the eruption (part of the geosphere) affected the atmosphere and hydrosphere.
  What will be an ideal response?

Question 2

Match the rock type with the correct definition.
 
  A) Rocks that form from the crystallization of molten material
  B) Rocks that form when a pre-existing rock is altered due to heat and pressure
  C) Rocks that form from pre-existing materials going through lithification
 
  1) Igneous
  2) Sedimentary
  3) Metamorphic



aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

Answer: The eruption ejected large quantities of ash and gases into the atmosphere and significant geologic debris into the nearby lakes and rivers (hydrosphere).

Answer to Question 2

Answers: 1) A 2) C 3) B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For a complete list of videos, visit our video library