Answer:b. developments such as the three-field system and the padded horse collar meant that agriculture actually improved from classical time.
Explanation:Early Middle Ages or Early Medieval Period , sometimes referred to as the Dark Ages , as lasting from the 5th or 6th
century to the 10th century.
In the 19th century the Early Middle Ages were often labelled the "Dark Ages" , a characterization based on the relative scarcity of literary and cultural output from this time.
The early middle Ages generally believed to have started with the fall of the Roman Empire in 476 and to have lasted about 1,000 years until about 1450. The beginning of the Middle Ages is called the Dark Ages because the great civilizations of Rome and Greece had been conquered.
Answer:
The building will vibrate around one particular frequency known as its natural, frequency, the building and ground share the building frequency its said to be in resonance.
Explanation:
- Resonance is the frequency of the system to oscillate with a greater velocity than the others as all buildings have a resonance period which is the number of seconds for a building to vibrate and the ground also shows the seismic resonance frequency, the mismatch of the resonance and the wave frequency. Thus taller buildings will be damaged more than shorter structures.
- <u>These forces create the lateral accelerations that scientists measure by the G-forces. The sudden movement creates enormous stresses for the building's structure, including the beams, the columns, and the walls and the floors, as well as the joints that hold them together. If that stress is large enough, the building can collapse.</u>
Answer:
c. has been determined by radiometric dating
Explanation:
- Radiometric dating is a method that is used to determined by the age of rocks as per the age of the oceanic crust the plates near the mid oceanic ridges are the most recent or new.
- The plates that are located farther away form there ridges are oldest and hence the age of the oceanic crust is not the same in all the places of the world oceans.
I believe that the correct answer would be unequal.
Answer:
Yearly snowfall averages; Days State Place Inches Centimetres; 0.1: Louisiana: New Orleans: 0.0: 0.0: 27.8: Maine: Portland: 61.8: 157.0: 9.6: Maryland: Baltimore: 20.2: 51.3: 22.4: Massachusetts: Boston: 43.8: 111.3: 44.7: Michigan: Lansing: 51.1: 129.8: 37.3: Minnesota: Minneapolis: 54.0: 137.2: 0.6: Mississippi:
