Author Question: Recent evidence indicates that petroleum is derived from A) plants. B) microscopic land animals. ... (Read 107 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
Recent evidence indicates that petroleum is derived from
 
  A) plants.
  B) microscopic land animals.
  C) microscopic marine animals.
  D) decomposition of volcanic ash.

Question 2

The process of alpha decay results in what change in the atomic number?
 
  A) a decrease of 2
  B) a decrease of 1
  C) an increase of 1
  D) no change



Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

For a complete list of videos, visit our video library