This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Tiny grains of zirconium silicate (zircons) found embedded in sedimentary rocks have been ... (Read 53 times)

silviawilliams41

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
Tiny grains of zirconium silicate (zircons) found embedded in sedimentary rocks have been radiometrically dated to what age?
 
  A) 4.57 billion years ago
  B) 3.85 billion years ago
  C) 4.38 billion years ago
  D) 4.02 billion years ago

Question 2

Which of the following signals from an advanced civilization would be easiest to detect?
 
  A) high intensity, narrow bandwidth
  B) low intensity, wide bandwidth
  C) high intensity, wide bandwidth
  D) low intensity, narrow bandwidth


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

connor417

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


silviawilliams41

  • Member
  • Posts: 560
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
A comparison between chromosomes found in a normal human cell and a cancer cell from the same person A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
An example of layers, or strata, of sedimentary rock that contain fossils An example of layers, or strata, of sedimentary rock that contain fossils
An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina. An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
) Ornithine and citrulline, which are not found in proteins ) Ornithine and citrulline, which are not found in proteins
Metamorphic Rocks Metamorphic Rocks
Video: Types of disease resistance: innate defenses & immunity

For a complete list of videos, visit our video library