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high porosity
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Why sandy soil is well aerated and light in weight?
Sandy soil has large particles with gaps between them, allowing for good air circulation and drainage. The lack of fine particles means the soil is lighter in weight compared to soils with more clay or silt content.
What is a postulate of the kinetic-molecular theory?
all particles are always moving
Why is it important to stir then filter when doing a soil experiment?
Stirring the soil sample helps to homogenize it and ensure that any nutrient or pH variations within the sample are evenly distributed. Filtering the soil after stirring helps to remove any large particles or debris that could affect the accuracy of the analysis. Both steps are important to obtain a representative soil sample for the experiment.
What is the texture of soil?
Soil texture refers to the proportion of sand, silt, and clay particles in the soil. It can vary from sandy (large particles) to loamy (equal parts sand, silt, and clay) to clayey (small particles). Texture influences soil fertility, drainage, and aeration.
A large sample of solid calcium sulfate is crushed into smaller pieces for testing Which two physical properties are the same for both the large sample and one of the smaller pieces?
The density and chemical composition of both the large sample and a smaller piece of solid calcium sulfate are the same.
Explain the differences between a sample and a population?
A sample consists of a small portion of data when a population is taken from a large amount.
What is a gas is characterized by?
A gas is characterized by having no fixed shape or volume, as its particles are spread out and move freely. Gases can be compressed easily due to the large amount of space between particles, and they expand to fill the container they are in.
When tiny particles of an element fit in between the large particles of another element?
electrons
What are easily compressed because of the space between the particles?
Gases are easily compressed because of the large amount of space between their particles. In a gas, particles are far apart and move freely, allowing them to be pushed closer together when pressure is applied. This compressibility is a key characteristic that distinguishes gases from liquids and solids, which have particles that are much closer together and resist compression.
Differences between two sample averages are most likely to be statistically significant if?
difference is large
How is the large amount of energy found in plasma generated?
The energy is produced by colliding charged particles.
How is the large amount of energy found in a plasma generated?
The energy is produced by colliding charged particles.
What is the difference between subatomic particles and elementary particles?
Subatomic particles are proton, neutron, electron; these particle are some examples of the large group of elementary particles.
Are there more particles in a beaker with a large amount of water in it or a beaker with a small amount of water in it?
There are more particles in the beaker with a large amount of water compared to a beaker with a small amount of water, assuming the water is the only substance present. This is because the volume of water in the larger beaker contains more individual water molecules than the volume of water in the smaller beaker.
Why is a large sample better than a small sample?
A large sample will reduce the effects of random variations.
Why is it important to use a small amount of sample when spotting a TLC sheet?
Spot small amount of sample so that it run as a discrete spot and doesn't diffuse out into a large area. It make the separation from other compounds much more efficient.
What are the deferences between endocytosis and exocytosis?
Endocytosis is a process in which a cell takes in large molecules or particles, while exocytosis is a process in which a cell expels large molecules or particles.
