Astronomy is the oldest of the sciences, and quite possiblythe oldest use of astronomy is navigating by the stars. This craft dates fromprehistoric times among humans, and is even practiced by certain animals.
For example, during the 1960s, a study undertaken by New York's Cornell Lab of Ornithology demonstratedthrough use of planetarium simulations that the indigo bunting, a brilliantly blue bird of old fields and roadsides, migratesat night using the stars for guidance. It learns its orientation tothe night sky from its experience as a young bird observing the stars.
Some primitive tribesaccomplished amazing feats of pathfinding using only the sky as their guide.The Māori came to New Zealand from eastern Polynesia, probably in several waves between the years 1280 to 1300. With no instruments ortables to consult, they very carefully observed the night sky as well localweather patterns and ocean currents.
Relying on the stars
In today's modern world, private andcommercial aircraft depend on a complex network of radio, satellite, inertialand other navigationsystems. But should any or all of these systems fail, the starry sky canserve as the last resort.
Answer:
the president
the vice president
the cabinet
Explanation:
the exectutive branch is vested in the president of the united states
the vice president, acts as the commander-in-chief
the cabinet who are responcible for the day to day enforcement of law
Answer:
B.
The American colonists have a right to seek freedom from Great Britain due to the continued oppression of their basic rights.
Explanation:
Answer:
Option A. 
Explanation:
<u><em>The complete question is</em></u>
Gary buys a 3 1/2 pound bag of cat food every 3 weeks. Gary feeds his cat the same amount of food each day. What expression could be used to determine the number of pounds of cat food his cat eats each year(1 year-52 weeks)
A. 7/2 x 52/3
B. 7/2 x 3/52
C. 3( 1/2 x 3/52 )
D. 3 ( 1/2 x 52/3 )
we can say that
The cat eats 3 1/2 pound bag of cat food every 3 weeks
Remember that
one year represent 52 weeks
so
using proportion
Find out the number of pounds of cat food his cat eats in 52 weeks (one year)
Convert mixed number to an improper fraction
substitute
Convert to mixed number
therefore
The expression is
The number of pounds of cat food his cat eats each year is 60 2/3 pounds
