Answer:
. A DNA molecule in a human chromosome can be up to 250 million nucleotide-pairs long; in contrast, most RNAs are no more than a few thousand nucleotides long, and many are considerably shorter.
Explanation:
Weathering can be defined as the physical disintegration and chemical decomposition of rocks and structures to form sediments and soils. Physical weathering is also known as mechanical weathering which involves the breakdown of materials physically.
In chemical weathering materials reacts decay via formation of chemical substances. It occurs by oxidation, solution, hydrolysis, carbonation, e.t.c
The minerals in a marble statue react with water to form acids and pores in the structure.
Chemical weathering
A piece of rock crumbles after being constantly thrashed by strong waves.
Mechanical weathering
Industrial runoff forms cracks in a rocky structure in its path.
Mechanical weathering
The rocks in a region are streaked orange after being exposed to repeated rains.
Chemical weathering
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Umm let me think......................................... the answer is true
Inbreeding can destroy the genetic variation that we get when two genetically different people reproduce. This can increase chances of birth defects.
