Answer:
Soil erosion causes siltation in rivers, dams, etc. In some areas, huge river deltas are formed (such as River Nile delta) because of soil erosion. Such places are good for agriculture but not good for urbanization. However, some people do not care about it, they just want to construct buildings on alluvium type soils.
A) The middle cranial fosses (right and left) are depressions in the floor of the skull base. They are found anteriorly by the sphenoid ridge And posteriorly by the Petrous ridge
Answer:
Explanation:
https://www.treehugger.com/natural-sciences/what-selective-breeding.html
https://en.wikipedia.org/wiki/Selective_breeding
https://www.yourgenome.org/facts/what-is-selective-breeding
http://www2.nau.edu/~gaud/bio301/content/selbrd.htm
https://www.britannica.com/science/selective-breeding
I'm pretty sure it's <span>both. Allopatric speciation occurs when there is a physical barrier formed like a mountain or river. and Sympatric speciation occurs when there is a genetic barrier formed like a mutation that causes a different mating season or preference in mate choice.
hope this helps!</span>
I believe that the examination of the ages at which children achieve motor milestones show that there are wide variations in the ages at which infants begin to sit, walk, and crawl. Developmental milestones are the skills such as taking the first step, smiling for the first time, and waving which vary differently from one child to another. Children reach milestones in how they play, learn, speak, act, and move. For example, between the ages of 9 to 12 months, children begin to achieve physical milestones such as standing up or even walking.
