What is the scientific term for weathering?

What is the scientific term for weathering?

Mechanical Weathering. Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock.

What is wetting and drying weathering?

Wetting and Drying. Rocks containing clay minerals, such as clays and shales. At high tide minerals on the rock surface are soaked with sea water and expand in volume. At low tide, minerals dry and shrink. Repeated cycles of expansion and contraction eventually cause the rock to fragment and crumble.

What is the scientific definition of chemical weathering?

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

Which of the following explains the term weathering?

Explanation: Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

What is subaerial weathering?

Sub-aerial processes refer to the processes of weathering and mass movement. Weathering is the breaking down of rock in situ. It can be divided into mechanical and chemical weathering. Mechanical weathering refers to physical processes like freeze-thaw action and biological weathering.

What is sheet jointing weathering?

Sheeting joints are extensive fractures that typically develop parallel to natural slopes. Embryonic sheeting joints initially constitute channels for water flow and then become the focus for weathering and sediment infill accompanied by progressive deterioration and dilation.

What is meant by biological weathering?

Biological weathering occurs when plants break up rocks with roots or root exudates. The process is slow, but may strongly influence landscape formation.

What is physical weathering science?

Physical weathering, also called mechanical weathering, is a process that causes the disintegration of rocks, mineral, and soils without chemical change.

What is freezing and thawing?

Physical weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water. Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart.

What kind of urine do freshwater animals produce?

Freshwater animals usually excrete very dilute urine. Marine animals tend to combat water loss to their salty environment by excreting concentrated urine; some develop methods actively to expel salts. Terrestrial animals, depending on their habitat, usually retain water and secrete a highly concentrated urine.

Where does the word urine come from in English?

The English word urine (/ˈjuːrɪn/, /ˈjɜːrɪn/) comes from the Latin urina (-ae, f.), which is cognate with ancient words in various Indo-European languages that concern water, liquid, diving, rain, and urination.

What kind of urine does a bird have?

The urine of birds and reptiles is a whitish, aqueous suspension of uric acid crystals that is passed into the cloaca and mixed with fecal material before being expelled. The urine of terrestrial insects is solid and in some cases is stored as pigment in the body rather than being expelled.

Which is the best description of the composition of urine?

Urine, liquid or semisolid solution of metabolic wastes and certain other, often toxic, substances that the excretory organs withdraw from the circulatory fluids and expel from the body. The composition of urine tends to mirror the water needs of the organism. Freshwater animals usually excrete very dilute urine.