Answer:
Over the last two centuries the dipole strength has been decreasing at a rate of about 6.3% per century. At this rate of decrease, the field would be negligible in about 1600 years. However, this strength is about average for the last 7 thousand years, and the current rate of change is not unusual.
Answer:
Which of the following examples of human environment interaction is an example of modifying the environment rather than just adapting to it?
Building a hydroelectric dam to generate energy
<em>A hydroelectric dam makes changes on the geographical environment by cutting forests, affecting soil properties.</em>
It's a hill.
Hope this helps!
Answer: B. the 20th Amendment, setting January 20 as inauguration day for the president
Explanation: The 20th Amendment, also called the Lame Duck Amendment, decreased the amount of time between the presidential election and the inaugration of the new president. This was made because of advances in technology with faster travel and communication.
