Supplies were carried almost entirely by human porters, with some use also being made of bicycles, elephants, and pack horses. When a Transportation Group first worked on the trail during the summer of 1959, the Trail passed south through the western portion of the Special Zone, crossed the between North and South Vietnam at the Ben Hai River and continued through the rugged mountains of western provinces in South Vietnam.
Answer:1838 - Costa Rica becomes fully independent. 1849-59 - Under the leadership of Juan Rafael Mora, Costa Rica takes the lead in organising Central American resistance against William Walker, the US adventurer who took over Nicaragua in 1855.
Explanation: This should help
Answer:
It helped them find their way to new countries by land and water.
Explanation:
Answer:
c. are too old (predate sedimentary deposition)
Explanation:
Radiometric dates calculated from minerals in sedimentary rocks produce ages that are too old and often predates the sedimentary deposition.
Radiometric dating involves the uses of radioactive elements in rocks to measure the absolute age of rock.
It involves comparing the daughter to parent ratio because the decay started when the minerals formed in a rock in a period of crystallization or metamorphic event.
- Sedimentary rocks are often made up of re-worked minerals.
- They are derived from pre-existing igneous and metamorphic rocks.
- When radioactive minerals from these sources finds their way into sediments, they give the age of their parent rock and not that of the sedimentary rock because their activity is not being reset.
Answer:
$160
Explanation:
Given
Total budget = $400
Percentage amount he can spend on clothing = 40%
Amount he can spend on clothing = 40% of $400
Amount he can spend on clothing = 0.4×400
Amount he can spend on clothing = $160
Hence the amount he can spend on clothing is $160
