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
DochEvi [55]
4 years ago
12

About how long ago did our solar system form? 3.8 billion years ago 4.6 billion years ago 5 billion years ago 13.7 billion years

ago
Biology
1 answer:
IRINA_888 [86]4 years ago
8 0

The solar system formed about 4.6 billion years ago.

You might be interested in
Hey I need help and only the correct answer!!!!!!!!
krok68 [10]

Answer:

the answer is D

Explanation:

3 0
3 years ago
Read 2 more answers
Rocks are formed by changes in heat and pressure of hot, watery fluids
Licemer1 [7]
That's true heat and pressure causes rock forms to change.
8 0
3 years ago
What is a Cell wall?
MatroZZZ [7]
Cell wall is the outer permeable covering in all pants and almost all prokaryotes ! cell wall are mainly made up of cellulose , sometime by chitin!!
8 0
3 years ago
Which best explains mantel convection
Snowcat [4.5K]

Answer:

The heat given off by Earth's core is circulated through mantle convection.

Explanation:

Heating materials usually causes them to <em>expand</em>; as they become hotter, they also become less dense. Convection describes the transfer of heat from hot areas of liquids and gases to cooler ones. This causes the heated, less dense material to rise and more dense material to fall, as it’s pulled by gravity. Super-heated metal forming Earth’s central core heats rock in the mantle; the hot and cool rock slowly rise and sink- this circulation process is called mantle convection.

7 0
3 years ago
A grandfather clock needs to have a period of one second. What length of pendulum should be hung for
NISA [10]

Answer:

Explanation:

hello not sure .but just started learn physics but think so 1 metre (39 inches) long. please mark me brailiest for answer or trying . thx

4 0
3 years ago
Other questions:
  • Which of the following best explains the central role of carbon in the chemistry of living organisms
    9·1 answer
  • I REALLY NEED HELP. I DO NOT GET THIS AT ALL. PLEASE HELP ME. IT WILL BE GREATLY APPRECIATED.
    9·1 answer
  • What is a long-term effect of the increased primary productivity of a terrestrial ecosystem
    15·2 answers
  • Part A: Explain why and how the polar covalent bonds found in water molecules are responsible for water's ability to dissolve ma
    10·1 answer
  • What does quaintance mean
    5·2 answers
  • Which structure allows the diaphysis of the bone to increase in length until early childhood, as well as shaping the articular s
    10·2 answers
  • Some substances but not other can cross the (blank) membrane of a cell
    8·1 answer
  • • What happens to the pH of the battery acid?
    10·1 answer
  • Which organisms in this food web have a Producer/Consumer<br> Relationship?
    8·1 answer
  • PLEASE PLEASE HELP !!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!