« previous next »

Author Question: The oldest evidence of life on Earth dates back to about how many years ago? a. 65 million b. 3.8 ... (Read 85 times)

bclement10

  • Hero Member
  • *****
  • Posts: 560
on: Jul 28, 2018
The oldest evidence of life on Earth dates back to about how many years ago?
 a. 65 million
  b. 3.8 million
  c. 3500 million
  d. 570 million

Question 2

Breaks, or gaps, in the rock record at a given locality are called
 a. unconformities.
  b. preconformities.
  c. nonconformities.
  d. disconformities.


cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 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

bclement10

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen
Mira as seen from the Earth Mira as seen from the Earth
Laminaria Life Cycle Laminaria Life Cycle
VESPR Chart. My favorite for many years VESPR Chart. My favorite for many years
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library