Which has the highest porosity?

Clay is the most porous sediment but is the least permeable. Clay usually acts as an aquitard, impeding the flow of water. Gravel and sand are both porous and permeable, making them good aquifer materials. Gravel has the highest permeability.

What has the highest porosity soil?

Clay has the highest total porosity.

• Clay has approximately 75% total porosity.
• Silt has approximately 50% total porosity.
• Sand has approximately 35% total porosity.

Which rocks that have high porosity?

Of the consolidated rocks, well-fractured volcanic rocks and limestone that has cavernous openings produced by dissolution have the highest potential porosity, while intrusive igneous and metamorphic rocks, which formed under great pressure, have the lowest.

What is an example of high porosity?

A good example of a rock with high porosity and low permeability is a vesicular volcanic rock, where the bubbles that once contained gas give the rock a high porosity, but since these holes are not connected to one another the rock has low permeability.

What does high porosity mean?

If you have high porosity hair, it means that water, oils, and other types of products can be easily absorbed by your hair. On the flip side, because your hair is highly porous, it may not be able to retain moisture as well as other types of hair.

Which beaker has the highest porosity?

Beaker A and beaker B have the same porosity, and beaker C has the greatest porosity.

What is the relationship between shape and porosity?

In between the particles are spaces that are filled with gas, air or liquid. Particles’ shapes and sizes affect how they aggregate, including how tightly they can pack together, which affects a rock’s porosity—a property that is the ratio of the volume of a rock’s empty spaces to its total volume.

How does the porosity of the three containers compare?

How does the porosity of the 3 containers compare? The porosity of all 3 containers are the same. What is the relationship between the particle size and the porosity? As the size of the particles gets bigger, porosity stays the same.

Where does groundwater come from?

Groundwater stored in aquifers comes mainly from rainfall. Depending on the type of aquifers this could be rainfall that occurred recently or up to thousands of years ago. Water can also seep through the ground surface and down to the water table from streams, lakes, rivers and other surface water bodies.

Why is underground water salty?

Groundwater salinity is generally of 3 types: (i) natural/primary salinity caused as a result of dissolution of minerals (e.g. halite, anhydrite, carbonates, gypsum, fluoride-salts, and sulphate-salts) from bedrocks or accumulation of salts from rainfall built up over time, hence the residence time of these may be …

Is groundwater drinkable?

While groundwater is generally a safe source of drinking water, it is susceptible to contamination. Pollutants that contaminate groundwater may be some of the same pollutants that contaminate surface water (indeed, surface and groundwater are connected).

How does water get into oceans?

Most water is carried into the oceans by rivers. The place where a river meets the ocean is called a delta or estuary. These are special environments where the freshwater from rivers mixes with the salty ocean water.

Is the ocean ever still?

More than 80% of the ocean remains unexplored. And because it’s difficult to protect what we don’t know, only about 7% of the world’s oceans are designated as marine protected areas (MPAs).

Does the ocean end?

Does the ocean have a end? While this question appears to have a simple answer, the reality is that all the world’s waterways are connected to each other. There are no borders within the water itself, rather the names were human constructs given to different oceans in regard to around which bodies of land they flow.

How is salt obtained?

Salt is obtained from sea water by the process of Evaporation.

How salt is formed in sea?

Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks.

What is special about the Dead Sea?

The Dead Sea is one of the saltiest bodies of water on Earth, with almost 10 times more salt than ordinary seawater. This is because water flows into the Dead Sea from one main tributary, the River Jordan. It then has no way to get out of the lake and so is forced to evaporate.

How is salt collected from sea?

Salt is obtained from seawater by the process of Evaporation.

Which ocean is not salt water?

Arctic Oceans

The major oceans all over the Earth are the Atlantic Ocean, Pacific Ocean, Indian Ocean, Antarctic, and Arctic Oceans. All oceans are known to have salt in a dissolved state, but the only oceans that have no salt content are the Arctic and Antarctic Oceans.

What is in pink salt?

Pink Himalayan salt is chemically similar to table salt. It contains up to 98 percent sodium chloride. The rest of the salt consists of trace minerals, such as potassium, magnesium, and calcium. These give the salt its light pink tint.