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
butalik [34]
3 years ago
9

From what sources did water arrive in Earth’s atmosphere?

Biology
1 answer:
dolphi86 [110]3 years ago
4 0

However, in Earths First Billion years and over the past 4.5 billion years, the main source of water was from comets. We know that comets consist chiefly of chemical compounds that are either gases or liquids at earth-surface conditions: methane is one common component of comets and water is another.

hope it helps :)

You might be interested in
When a system of classification is based on observation of a predetermined set of factors, it is called: a natural system, an ar
Viefleur [7K]
It is called an artificial system. 
4 0
3 years ago
Read 2 more answers
Proteinas estructurales
Tatiana [17]

Answer:

Explanation:

¿Qué es tu pregunta?

6 0
3 years ago
A rainforest is an example of a _____. <br> biome<br> community<br> habitat<br> population
tatyana61 [14]

<span>A rainforest is an example of a community. A community refers to the interaction of various species within a common geographic location. Communities are also known as biological communities, where species interact and co-exist with another to thrive and survive their given environment. </span>

4 0
3 years ago
Read 2 more answers
What effect does the terrain of a biome have on its climate and weather?
Basile [38]
If the climate is hot and dry then the biome will be a desert, if the climate is hot and wet, the biome will be a rainforest, if the climate<span> is dry and cool it would probably be a coniferous forest, if cold and wet, deciduous forest.</span>
6 0
3 years ago
If the na+ voltage-gated channels in a muscle cell open, what will be the result?
sammy [17]
If the Na+ voltage-gated channels in a muscle cell open, the Na (sodium) ions rush inside the muscle cell and makes the cell more positive as Na ions carry positive charge on it. Due to the entry of positively charged ions inside the cell, the cell becomes less negative and more positive. This is called depolarization of cell.
4 0
3 years ago
Read 2 more answers
Other questions:
  • 5. The "largest shovel of its kind in the world" can shovel how much dirt in an
    8·1 answer
  • which of the following is not a characteristic of life? a. maintains homeostasis b. composed of cells c. composed of atoms d. ca
    11·1 answer
  • Which physical characteristic of the neonate is typically present in the neonate of a primigravid mother?
    15·1 answer
  • Which of the following statements about cyst formation is true?
    14·2 answers
  • Why should the distillation apparatus have an opening to the atmosphere at the end?
    6·1 answer
  • Which molecule is most common in the human body? A.N2 B.CO2 C.H2O D.H2
    8·1 answer
  • which of the following statements best describes the process that by which the new claw is regenerated?
    6·1 answer
  • Which part of an animal cell helps control the movement of material in and out of the cell?
    9·1 answer
  • Which characteristic could help you distinguish between types of fungi
    5·1 answer
  • Help worth 50 points
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!