Density is the amount of mass in a certain Volume. Air pressure results from a column of air pushing on an area. A measure of how tightly air molecules are packed together is called Density
Option 1B, 2A and 3B
Explanation:
Density is the mass amount of a substance held up to its volume in certainity to a ratio formula. So basically, density = mass per volume of a substance.
Air pressure, on the other hand, is the pressure which is being experienced by the columnar weight of air, when the air in an area is being pushing down.
The amount of mass of the air in the prescribed volume of air constitutes its density and hence the air molecules packed tightly in the volume presumed carries a mass and is noted as the density.
The water is warmed up by the sun and then it evaporates into the atmosphere. The sunlight warms the water by its heat.
Water is then cooled down and condensation takes place.
The water then finally returns back to the earth by the process of precipitation in the form of rain or ice.
Water and nutrients that are not recycled on earth are stored in the form of reservoirs.
Prenatal medical procedure in which high frequency sound waves are directed into a pregnant woman's abdomen is called ultrasound sonography.
Ultrasound imaging or sonography is often used in medicine as the nondestructive procedure to visualize muscles and many internal organs as well as fetuses during routine and emergency prenatal care..
Answer:
I agree with Joelle.
Explanation:
Just out of common sense, not all cells are the same.
-Sienctists have studied and evaluated that cells in different matter have different make-ups. For instance, plant have cell walls and a cell membrane while animals (incluing humans) only have a cell membrane. Plants have a chloroplast, used to make their own food using the process photosythesis, While animals don't, an consume other living things.
-I don't know if you have to fill it out or anything, but if you were to fill it out, You'd put a check under each cell part for each thing.
(Not sure about the frog blood)
