1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sammy [17]
3 years ago
7

What are blocks of time in the geological time scale called?

Chemistry
2 answers:
Katena32 [7]3 years ago
7 0
B is the answer , i got you
Nutka1998 [239]3 years ago
5 0

Ans: The blocks of time on the geological time scale are called eras

The history of evolution of life on earth is usually depicted in terms of geological time scale. The time scale has been divided by geologists and paleontologists into blocks referred to as 'era'. The 3 eras that have been currently identified are:

Paleozoic era which is the oldest and dates back nearly 540 million years

Mesozoic era which dates back to 250 million years ago

Cenozoic era which dates back nearly 65 million years

You might be interested in
Using the process of photosynthesis, describe how carbon and oxygen cycles interact
Alex777 [14]
In photosynthesis, plants take in carbon dioxide and turn it into energy that comes out as oxygen.
8 0
3 years ago
Read 2 more answers
An element has three naturally occurring isotopes. ten percent (.10) occurs as 55^x, fifteen percent (.15) occurs as isotope 56^
Leviafan [203]
The average atomic weight is, from the name itself, the average weight of all its naturally occurring isotopes. All you have to do is multiple the abundance of each isotope with its individual mass, then add them altogether.

Mass = (0.10*55)+(0.15*56)+(.75*57)
<em>Mass = 56.65 amu</em>
5 0
3 years ago
As a cooking method, braising is valued for its A. ability to retain flavor. B. quickness and convenience. C. ability to create
Setler [38]
Definitely C, ability to create delicate flavors. :)
5 0
3 years ago
A HOMOGENEOUS LIQUID THAT CANNOT BE SEPARATED INTO ITS COMPONENTS BY DISTILLATION BUT CAN BE DECOMPOSED BY ELECTROLYSIS IS CLASS
nata0808 [166]

Answer:

ELEMENTS

Explanation:

CUZ AN A

ELEMENT IS A GROUP OF ATOMS THAT CANNOT BE BROKEN DOWN BY ANY CHEMICAL OR PHYSICAL MEAN

7 0
2 years ago
Calculate the mean kinetic energy {e1rans) in joules of the following molecules at 350 k: (a) he, (b) co2, and (c) uf6. explain
Lady bird [3.3K]

The mean kinetic energy per molecule is , where  is the Boltzmann constant and T is the absolute temperature.

So at 1000°C, the T = 1273.15 K, kB=1.38 × 10-23, therefore the mean kinetic energy is 2.635 × 10⁻²⁰J.

<h3><u>What is Kinetic energy ?</u></h3>

The energy an item has as a result of motion is known as kinetic energy.

A force must be applied to an item in order to accelerate it. We must put forth effort in order to apply a force. After the job is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy is the type of energy that is transmitted and is dependent on the mass and speed attained.

Kinetic energy may be converted into other types of energy and transported between things. A flying squirrel may run into a chipmunk that is standing still, for instance. Some of the squirrel's original kinetic energy may have been transferred to the chipmunk or changed into another kind of energy after the impact.

To view more about kinetic energy, refer to;

brainly.com/question/2972267

#SPJ4

4 0
1 year ago
Other questions:
  • Which statement is true about a reversible reaction?
    5·1 answer
  • Which energy transformation most likely occurs in a steam iron
    6·1 answer
  • What is in fire works
    5·1 answer
  • How do isobars help meteorologists predict weather?
    13·2 answers
  • What could we do to help restore some<br> balance to the carbon cycle?
    14·1 answer
  • Sally and Sue took a canoe trip down the Mississippi River. Their average speed for the trip south was 20 miles/hour. 20 miles/h
    5·2 answers
  • An unknown metal has a density of 10.51 g/ml and a mass of 287.8 g. What is the
    12·2 answers
  • 0.2 moles of aluminum has a mass of 5.4 g. what is The molar mass of aluminum​
    14·1 answer
  • ⚠️HURRY PLEASE⚠️FAST IM TIMED⚠️
    5·2 answers
  • Which one of these is not involved in a Combustion reaction ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!