Answer:
The outer core is about 1,400 miles thick, and it's made mostly of a combination (called an alloy) of iron and nickel, along with small amounts of other dense elements like gold, platinum, and uranium. These metals can, of course, be found on the surface of Earth in solid form.
Explanation:
I hope this helps!
One national security policy the United States established during the Covid 19 pandemic is limited travel to the United States.
Coronavirus is believed to be found in China's Wuhan lab, which continued to spread throughout the world and caused a pandemic. Different countries across the globe launched an initiative called "Stop the spread" to control the spread of the pandemic.
One most important exertion made to control this spread was to immunize the people against the virus and vaccinate them. Vaccinating the people would help to control the spread and immunize them against the virus. This would prevent further transfer of the virus to new communities.
In addition to this, the United States also restricted people from other countries and continents to travel in and out of the nation. Coronavirus was infectious and could spread through any contact or air. Thus, the states established a policy allowing limited travel.
To know more about COVID 19 pandemic, refer to the following link:
brainly.com/question/28347122
#SPJ4
Answer:
yes this sentence is ture
Explanation:
it is true because in primitive age people don't know the value of fire, they don't know how to cook!! they eat raw flesh but then society start changing now they khow the importance of fire!! they know the importance of home, shelter!! they know the importance of unity!! etc therefore it is proved!!
