Ask question

Ask question

All categories

3 years ago

6

A spruce tree trunk has been found preserved in glacial till. Samples taken from the trunk have been found to contain approximat

ely 12.5% of Carbon-14. How many half-lives have elapsed since this tree was buried?

1 answer:

faust18 [17]3 years ago

6 0

Answer:

three half-lives

Explanation:

Converting 12.5% to decimal gives 0.125

If one half life is 0.5.

0.5*0.5*0.5 gives 0.125

Thus 3-half lives has been elapsed

You might be interested in

From where do American's rivers run east and west?

Verdich [7]

The rivers will go both north and sounth

8 0

4 years ago

Rewrite each equation in slope-intercept form. Then determine whether the lines are perpendicular. Explain

In-s [12.5K]

Answer:

flip the fist one 6x1=6

2 one is 20/1

3 one is 4/8 6

4 is 8+18=27x2=57

5 is 6+4=10x2=20

6 is 6+5=11x2=22

hope i helped

Explanation:

7 0

3 years ago

___ occur(s) when the Earth comes out of an ice age.

mario62 [17]

C, it’s global warming . Temperatures start to rise . Oceans get warmer as well.

7 0

3 years ago

a landform characterized by high evaluation and a more or less level surface is called a Mountain b plane C plateau d Hill

KATRIN_1 [288]

plateau- a landform that has high elevation and a more or less level surface

7 0

3 years ago

4. Describe the law of cross-cutting relationships: _

vlada-n [284]

<u>Answer:</u>

<em>The rule of cross-cutting connections expresses that a volcanic interruption is constantly more youthful than the stone it cuts over.</em>

<u>Explanation:</u>

<em>Analyze the volcanic interruption and the encompassing rock.</em> Cross-cutting connections is a guideline of topography that expresses that the geologic element which cuts another is the more youthful of the two highlights.

It is a relative dating strategy in geography. The <em>standard of cross-cutting connections expresses that a volcanic interruption is constantly more youthful than the stone it cuts over.</em>

3 0

3 years ago