« previous next »

Author Question: According to fossil evidence, how far back in time did life on Earth exist? A) about 545 million ... (Read 34 times)

Alygatorr01285

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
According to fossil evidence, how far back in time did life on Earth exist?
 
  A) about 545 million years B) about 2.0 billion years
  C) about 65 million years D) about 3.5 billion years or more

Question 2

Oceans cover more of Earth's surface than land.
 
  Indicate whether the statement is true or false


laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Three of the color variants found at Fossil Rim Wildlife Center in Texas Three of the color variants found at Fossil Rim Wildlife Center in Texas
Common skin signs are often evidence of an illness or disorder. A fissure is a crack-like sore or ... Common skin signs are often evidence of an illness or disorder. A fissure is a crack-like sore or ...
In early capitalism, children worked alongside adults. At that time, just as today, most street ... In early capitalism, children worked alongside adults. At that time, just as today, most street ...
Hierarchy of scientific evidence Hierarchy of scientific evidence
The Oceans of Earth The Oceans of Earth
Disitive Time For Fish Disitive Time For Fish
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library