Answer:
the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth
Explanation:
The earth's magnetic field or geomagnetic field is believed to originate from the movement of molten iron and nickel in the outer core.
During a period in which the earth magnetic field is normal, crystallising magnetic minerals in magma records the orientation of the prevailing geomagnetic field. At other times when the field reverses and the magnetic field orientation changes, magnetic minerals in cooling magma stores this record.
To create a geomagnetic time scale, geologists can assign absolute ages to the records of these paleomagnetic anomalies which are the reversals. The rock is dated using radiometric techniques and each period of reversal is ascribed an absolute geologic age. Therefore, the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth helps to build the geomagnetic time scale of the earth.
Answer:
Patent fingerprints can be made by blood, grease, ink, or dirt. This type of fingerprint is easily visible to the human eye. Plastic fingerprints are three-dimensional impressions and can be made by pressing your fingers in fresh paint, wax, soap, or tar.
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Explanation:
Qualitative analytic methods are needed to determine THE IDENTITY OF THE POISON USED IN A MURDER.
Quantitative analytic methods are used to identify unknown materials such as chemical compounds, poisons, etc. In a criminal investigation case, qualitative analytic method can be used to identify the particular poison that was used to murder a victim. Qualitative methods do not involve numeric data or figures while quantitative methods typically has to do with the quantity of a substance that is involved in a particular situation.This is basic difference between the two methods.
If the average person blinks 25 times per minute you have to multiply and times it by 60(which is an hour) to equal {1,500} . Next times the number 1,500 by 24 because that is how many hours are in a day so that would equal {36,000} times a day. Now times 36,000 by 7 because that is how many days of the week so {252,000} is the answer per week.
Now to figure out how many times we blink in a year we will multiply
252,000 by 52 because there are 52 weeks in a year.
You get the answer 13,104,000
So you blink 13,104,000 times in a year.
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