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Aliun [14]
3 years ago
10

Help fast

Geography
1 answer:
damaskus [11]3 years ago
3 0

Answer:

2. The bottom layers of the rock could have formed before life occurred.

Explanation:

The bottom layers of the rock could have formed before life occurred because there is no fossil is present. If there is life at that time so the fossils are present at the bottom layer so the absence indicates that is no life present at that time. The bottom layer is older than the upper layer so that's why fossils of bacteria are found in the upper layer of the rock.

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Can you think of any problems that could come from using only 15 years of data to predict trends for the next 100 years? Explain
pentagon [3]

Explanation:

A major problem with using 15 years of data to predict 100 years of data is that the 15 years could have been setting a trend, then level off.

For example, if the 15 years of data was a graph, and it was going up every year, then what if 20 years into the 100 years it stops going up? Then that means the data was invalid because there wasn't enough to base any trends off of.

You can prevent this from happening by extending the collection time of data and to reduce the amount of time that the data will be used to predict.

Hope this helps!

5 0
3 years ago
Element of world cultures dance language and what else
boyakko [2]

Answer:

and da way of some they dress

5 0
3 years ago
Wind power has a cubic dependency on wind speed. How much power will a wind-powered turbine generate for a wind speed of 8 m/s,
sveticcg [70]

Answer:

Power generated by wind turbine at 8 m/sec will be 6400 KW

Explanation:

We have given at 2 m/sec power generated by turbine = 100 KW

We know that foe a wind turbine power P\propto\ v^3 here P is power and v is velocity of wind

So P=kv^3, here k is constant

So 100\times 1000=k\times 2^3

k = 12500

Now we have to calculate power at 8 m/sec

So power P=kv^3=12500\times 8^3=6400\times 10^3W=6400KW

So power generated by wind turbine at 8 m/sec will be 6400 KW

3 0
3 years ago
The coordinates of a quadrilateral are (5, 8), (7, 10), (9, 12), and (11, 14). After a transformation, the sign of the x-coordin
Inessa05 [86]

Answer:

A.

Explanation:

Sign changing means that each value went from positive to negative. 

A is a 180 degree rotation around the origin, the answer would be A.

B doesn't change the sign for neither x nor y.

C changes the sign for y, but not x.

D changes the sign for x, but not y.

6 0
3 years ago
What is a solar eclipse ​
Sergio [31]

Answer:

an eclipse in which the sun is obscured by the moon.

5 0
3 years ago
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