Seismometers are tools which measure motion in the ground including seismic waves generated by earthquakes, volcanoes, and other activities which might create seismic waves. Seismometers measure any movement of seismic activity in the earth and today this is done by electronic means whereby the machine measures any changes in seismic activity in the surrounding areas of the seismometer. The first seismometer is believed to have been invented by Zhang Heng of China's Han Dynasty in 132 AD.
Answer:
A
Explanation:
i think if its correct give me brainliest
1.The area should have at least 5 Million square feet of leasable office space.
2.The area should have more jobs than homes.
3.The area must have 600,000 of leasable retail space.
4.The population perceives it as one place.(The area should have it i.e entertainment, recreation, shopping)
5.The area was nothing like a city 30 years
Answer:
t=17.61 years.
Explanation:
Given that
Reserve of energy = 10,000 EJ
Energy used by human = 18 TW
We know that
So
Lets t time after energy will be exhaust
So
We know that
1 year = 365 days
1 year = 365 x 24 hr
1 year = 365 x 24 x 3600 s
So
t=17.61 years.
Answer: widely varied; describing our world.
Explanation:
Geography is referred to as the study of the people and how they relate to their environments. It has to do with how the features of the Earth are being studied.
Also,not had to do with how populations are being distributed. It describes our world.
