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:
El sistema nervioso cumple con tres grandes funciones. La función sensitiva está dada por la capacidad de sentir los estímulos (internos y externos), mientras que la función integradora se encarga de analizar dichos estímulos, almacenar información e impulsar una decisión al respecto.
Answer:
Rivers, lakes, and marshlands, such as (from top) South America's Amazon River, Russia's Lake Baikal, and the Everglades in Florida of the United States, are types of freshwater systems.
C. 6.81x10^-4
It is negative 4 because the 6 is 4 digits away from the first 0.
Scientific notation has one number and then the decimal place so it can not be A or E.
