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
EleoNora [17]
3 years ago
6

How old are the oldest rocks of the ocean floor?

Geography
2 answers:
12345 [234]3 years ago
6 0

Answer:

less than 200 million years old

Explanation:

    The oceanic crust is composed essentially of basalt, formed by magnesian silicates (hence formerly called sima). It is 5 to 10 km thick and is denser than the continental crust because it contains more iron. Seismic waves have a speed of 7 km / s.

    Ocean dorsals are geologically young relief forms, so none of the existing dorsals are more than 200 million years old, which can be considered very little compared to the 4.6 billion years that Earth has.

Ksenya-84 [330]3 years ago
4 0

Hey There,

      The answer to your question is option B) Between 200 and 500 million years old.

These rocks are younger than the Earth and also younger than rocks found on continents. (Those rocks are 4-5 billion years old.)


Best Of Luck,

  - Kai -

You might be interested in
What area of egypt is known as upper egypt?
docker41 [41]
The southern part, because the altitude increases as you go south in Egypt and leads into the Ethiopian highlands
4 0
3 years ago
Read 2 more answers
Identify 2 ways condensayion and boiling differ
tekilochka [14]

First, boiling is the change of state from a liquid to a gas. Second, boiling of a pure substance occurs at a particular constant temperature called boiling point.

First, the change of state from a gas to a liquid is called condensation. Second, a pure substance condenses at a temperature equal to its boiling point.

Hope this helps you!

5 0
3 years ago
Suppose your surface body temperature average 90°F.How much radiant energy in micrometre would be emitted from your body? Determ
natita [175]

Answer:

Explanation:

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeerrrr\

3 0
3 years ago
ע<br> Discuss two reasons that farmland is being lost in MDCs. (p. 332-3)
sweet [91]
Farm land are being lost because companies are using them to build houses over them
8 0
2 years ago
What is bushfire..???​
vekshin1

Answer:

Bushfires in Australia are a widespread and regular occurrence that have contributed significantly to moulding the nature of the continent over millions of years.

5 0
3 years ago
Other questions:
  • Manga causes powerful and explosive volcanic eruptions is
    14·1 answer
  • Which of the following choices is the most abundant chemical sedimentary rock?
    9·1 answer
  • When would the relative humidity of an air mass increase?
    7·1 answer
  • What were artistic accomplishments under the ming dynasty in China
    15·1 answer
  • Choose the statement that correctly describes the pair 3 and 5
    10·1 answer
  • Europeans first arrived in latin america during which time period?
    11·2 answers
  • Which topic is most closely related to the study of culture as part of human geography? The process France uses to select leader
    7·1 answer
  • The origins of the Cold War occurred when the USSR and the United States increased their influence in Europe after
    6·2 answers
  • ¿Por qué el agua es una sustancia inusual cuando se trata de densidad!
    13·1 answer
  • what type of event has repeatedly generated very high tsunami waves in coastal fjords of southeastern alaska?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!