Magnetic reversal is a<span> change in the Earth's </span>magnetic<span> field resulting in the </span>magnetic<span> north being aligned with the south, and vise versa. This also supports the sea floor spreading idea. </span>
Answer:
The innermost is called the inner core and is thought to be a solid, spherical mass of iron. Its radius is about 1,216 kilometers (730 miles)
The achievements of the Tang and Song Dynasties include "the invention of gunpowder and the growth of Confucianism".
The Song dynasty (960-1279) takes after the Tang (618-906) and the two together constitute what is regularly called "China's Golden Age."
The utilization of paper cash, the presentation of tea drinking, and the innovations of gun powder, the compass, and printing all happen under the Song. (The way that the tradition traverses the year 1000 may make it simpler for students to find these advancements in time.)
<span>Giraffes, zebras and lions can be found in the grassland habitat of the savanna. The African Savanna is full of grassland where these animals can hunt and live. The savanna is also full of others species as well as numerous vegetation that is needed to feed the giraffes, zebras and the lions have been know to feed on both the giraffe and zebra.</span>
Only by other chemical changes. For example, to undo tarnish on copper pennies, you can place them in vinegar.