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
andrew-mc [135]
3 years ago
14

Approximately how old is the Earth

Biology
2 answers:
Solnce55 [7]3 years ago
8 0

Answer:

The earth is approximately 4.54 ± 0.05 billion years old.  

Explanation:

In solar system the earth is only planet to have life in it. The existence of water makes it unique and it is the root cause for the presence of life. Other planet do not have any atmosphere water available on them which could support life in any form.

The presence of atmosphere hydrosphere and lithosphere induces biosphere which is also defined as sphere of life. Life exist on earth in the form of plants animals and small organisms.

The first life was originated in water itself. Water gives all the essential conditions which would support life.

Agata [3.3K]3 years ago
4 0

Answer:4.5 billion years

Explanation:

According to radiometric

You might be interested in
Why do leaves fall off of trees during fall and winter
Natalija [7]
Because the trees go into a different state during the seasons
8 0
3 years ago
Read 2 more answers
How can we describe the global food challenge? ​
Inga [223]
The series explores strategies to sustainably feed more than 9 billion people by 2050. All pieces are based on research being conducted for the 2013-2014 World Resources Report. The world is projected to hold a whopping 9.6 billion people by 2050.
3 0
3 years ago
Read 2 more answers
Alabama is number ranked number 1
AfilCa [17]
Yes in college football rankings
7 0
3 years ago
A 0.2 M solution of NaCl contains ________ g of NaCl in 1 l of ________.
Maksim231197 [3]

Answer:

11.7 g in 1 L of water.

Explanation:

Molarity (M) or Molar concentration is a measure used in chemistry for solutes in a solution.

It is defined as mol/ L (number of moles per litre).

0,2 M means we have 0,2 mol/ L

In order to know how many grams this means we need to look up the molecular weight of the solute. In this case NaCl: 58.443 g/mol

\frac{1 mol NaCl}{58.443 g} = \frac{0.2 mol}{X g}

X= \frac{(0.2 mol x 58.433 g}{1 mol}

X= 11.69 g

The solution has 11.69 g of NaCl in 1 L of water since its an adequate polar solvent for NaCl dissolution.

8 0
3 years ago
What the process and energy needed?
leva [86]

Answer:

C. Diffusion and no energy needed.

Explanation:

A - Passive transport doesn't require energy.

B - Osmosis would be if the 25% H2O went into the 82%

D - Active transport doesn't apply because molecules aren't moving across into a higher concentration.

Diffusion is when parts of the 82% go into the 25%.

6 0
2 years ago
Other questions:
  • Is key lime pie considered a lipid?
    15·1 answer
  • Help me with this question please
    14·1 answer
  • Which type of seismic waves result from interference between s waves and p waves
    5·2 answers
  • Given the nucleotide sequences below, what type of mutation has occurred?
    13·1 answer
  • Which statement best describes how the distance from a large river affects
    5·1 answer
  • What is environmental science
    15·1 answer
  • how are radioactive isotopes used to determine the absolute age of igneous rock name to radiometric methods that are used
    12·1 answer
  • When a bond forms between units of a macromolecule, a water molecule is lost. What is this process called?
    5·1 answer
  • Refers to the application of food science to select, preserve, and process food.
    15·1 answer
  • Q8. Design an experiment that you could perform to see if a population of fruit flies—very small insects that feed on bananas—gr
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!