Explanation

AB positive (AB+)

and O negative (O-) are considered universal blood types

because they can receive blood from all blood kinds

without experiencing any hemolytic reactions.

Explanation

• Humidity in the air was measured by a Hygrometer.
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• A hygrometer is an instrument used to measure relative humidity.
• Humidity is the measure of the amount of moisture in the air.
• A psychrometer is an example of a hygrometer.
• hygrometer.
  
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• The humidity in the air tells us about the ratio of Water vapors in the air

Explanation

Confusion

Meteorology is a branch of the atmospheric sciences.

Metrology is the scientific study of measurement.

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Agrostology: Study of Grasses 

Agronomy: soil management and crop production 

Odontology: study of teeth 

Arthrology: Study of joints 

Nephrology: study of kidneys

Hematology: Study of blood  

Dermatology:  Study of skin 

Explanation

An anemometer is an instrument that measures wind speed.

This type of anemometer has a spinning wheel.

Additional Information:

A hygrometer is an instrument used to measure humidity

A salinometer is used to measure the salinity

A bolometer is used to measure the power of incident electromagnetic radiation

A barometer is used to measure air pressure in certain environment.

Explanation

•  On 3 December 1967, the world's first human-to-human heart transplant was performed by Dr. Christiaan Barnard
• at Groote Schuur Hospital in Cape Town, South Africa.
  
• Barnard performed a heart transplant on his patient, Louis Washkansky.
•  Louis Washkansky, 53, with heart failure the donor, Denise Darvall, was just 25.

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ND3-12-2022