when salt is in the water, it's the slightest bit denser, or thicker, than normal water because the salt dissolves intoit . it's not noticeable by normal people.
Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.
Deposition is the laying down or settling of eroded material. Sediment deposited in water typically forms layers called beds.
Electricity is used to move DNA molecule fragments through the agarose gel. This technique has lots of applications.
There are 195 countries in the world comprises of 193 countries that are member states of the United Nations and 2 countries that are non-member observer states
