Answer:
A primary source is the first-hand account of an event (or topic), which stems from individuals who had first-hand encounters with it. Historians use primary sources to analyze and observe raw evidence so that they may properly interpret the past.
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
I think the answer is b because we do those thing s on a regular
Ancient Egyptian culture<span> flourished between c.. 5500 BCE with the rise of technology (as evidenced in the glass-work of </span>faience<span>) and 30 BCE with the death of </span>Cleopatra VII<span>, the last Ptolemaic ruler of </span>Egypt<span>. tis famous today for the great monuments, which celebrated the triumphs of the rulers and honored the gods of the land. The culture is often misunderstood as having been obsessed with death but, had this been so, it is unlikely it would have made the significant impression it did on other ancient cultures such as </span>Greece<span> and </span>Rome..
The correct answer is option A.
the Inca planting was done on terraces, this avoided that the water used in the irrigation caused soil losses
. It is also important to say that the Incas were the first people to use irrigation, in addition to other techniques that greatly influence current agriculture.