Author Question: The earth system: A) cannot be affected by anything from space. B) is powered solely by the Sun. ... (Read 52 times)

jake

  • Hero Member
  • *****
  • Posts: 538
The earth system:
 
  A) cannot be affected by anything from space. B) is powered solely by the Sun.
  C) is the highest level of system possible. D) includes parts that affect one another.

Question 2

Which of the following heavy metals is/are associated with damage to the human nervous system?
 
  A) radon
  B) lead
  C) mercury
  D) mercury, lead, and radon
  E) mercury and lead


anyusername12131

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

D

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

For a complete list of videos, visit our video library