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
Sergio [31]
3 years ago
7

Can someone please explain half lives to me? the term used in and earth science class

Geography
1 answer:
Vitek1552 [10]3 years ago
5 0
A half life is the amount of time it takes for the radioactivity of a specified isotope to fall to half its original value.
You might be interested in
Which number line shows the solution to n > -2​
Margarita [4]

To graph this inequality, start with an open dot on -2.

We use an open dot because n is

greater than -2 but n is not equal to -2.

Next we draw an arrow to the right

to represent all numbers greater than -2.

I have graphed this inequality below too.

The graph below is my own work.

This should correspond to the first answer choice.

4 0
3 years ago
Describe the steps that were involved in the making of the sun​
Vesnalui [34]

Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.

4 0
3 years ago
What evidence did Alfred Wegener use to support his
AlexFokin [52]

Answer:

WagonR use Fossil evidence to support his continental drift hypothesis the Fossil of this organism are found on less that are now for apart groups and rock deposits left by insteon Glacier are found today on different continents very close to the equator

8 0
3 years ago
Which of the following is not a reason why Shenzen, China is considered an emerging global city?
Vesna [10]
Is there multiple choice?
8 0
3 years ago
Read 2 more answers
. business practice of recreation travel concerned with<br> the environment
mixer [17]

Answer:

ecotourism  

Explanation:

4 0
3 years ago
Other questions:
  • What does every passenger need to know before getting on a flight
    8·2 answers
  • A front that spirals counterclockwise in the Northern Hemisphere is called a(n) ___ front
    9·2 answers
  • As the result of hundreds of years of assimilation with Spanish culture, the most common religion in Latin America is __________
    15·1 answer
  • Why does the leeward side of a mountain typically remain dry?
    15·1 answer
  • An unconformity represents: a gap in the geological record, an intrusive igneous structure, an epeirogenic change, a location th
    7·1 answer
  • Which is a type of chemical weathering. A) Leaching B) Acid Rain C) Frost wedging D) Fracture
    12·1 answer
  • What is the definition of Gross Domestic Product (GDP)?
    8·1 answer
  • The Hawaiian Islands are surrounded by which ocean?<br> Pacific<br> Atlantic<br> Indian<br> Arctic
    11·1 answer
  • ¿Que es la vulnerabilidad?
    5·2 answers
  • Which parts of the Jewish covenant God?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!