Question

miocture.
22 A
foor welding of orygen and ethyne ir
burnt
you tell of why a micture
Z
q
However a
ot
of ethyned and air is not usedda
ZHG = CH + 850 uco + 2 Hot Heat
when ethyne is burnt in an it givee a
sooty flame. This is due to
to incomplete
combustion caused by limited supply of oxygen.
of
la clean flame with temperature
300886 becauye de complete combustion
This oxy-acetylent of same is
welding, it is not possible to attain such
a high temporation without mising Oxygon.
This is the rear on why
e thyne and air is not used
givee a
por
la​

Answer 1

Chemical weathering typically increases as temperatures rise and rain falls, which means rocks in hot and wet climates experience faster rates of chemical weathering than do rocks in cold, dry climates.

Physical weathering occurs more often in cold climates, because the different minerals within rocks expand and contract at different rates when they are heated and cooled. Repeated heating and cooling cycles eventually cause rocks to fracture. Desert and mountain climates experience a wide range of temperatures from low to high during a day and night, which accounts for the breakdown of rocks known as physical weathering.

Biological weathering occurs when living organisms break up rocks. Tree roots, for example, can fracture rocks in the same way they buckle pavement. Warm, humid climates are most favorable to life. Contrast the rich diversity of life in a rainforest, for example, with the scarcity of life in the dry Sahara or the frigid Antarctic. Consequently, rates of biological weathering are most rapid in warm humid climates like those in tropical regions.