« 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 159 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?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
Lolita, at the Miami Seaquarium, is one of the oldest whales in captivity. Lolita, at the Miami Seaquarium, is one of the oldest whales in captivity.
Muscles of the right upper extremity back view Muscles of the right upper extremity back view
Atmospheric CO2 Concentrations Increased Very Rapidly during the Last 200 Years Atmospheric CO2 Concentrations Increased Very Rapidly during the Last 200 Years
Life Cycle Nutrition: Pregnancy through Infancy Life Cycle Nutrition: Pregnancy through Infancy
Life Expectancy in Developing Countries Life Expectancy in Developing Countries
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library