Yes, certain vaccines ate authorized for emergency use against coronavirus
Answer:
The footprints at Laetoli were remarkably well-preserved because: they were made in an ash slurry that quickly hardened and were then buried by volcanic ash soon after they formed .
Explanation:
Laetoli -
It is the archaeological site present in the region of northern Tanzania .
In this site the footprint of the ancient humans are preserved , because of the volcanic eruption .
Around 3.85 million years ago , a volcanic eruption took place , and due to the ash fall of the eruption , the foot prints of the ancients got preserved .
Answer:
Among the options given on the question the correct answer is option B.
Mexican American
Explanation: The Mexican American was the ethnic group who fought for the immigration policy reform during 1960s. Because after the second world war there was a internment of Japanese in America as they were involved in the World War ll. There were a lot Mexican American workers in the America who took a large portion in the labor group.
However,the newly immigration policy was not favorable for the Mexican American workers. There was thousand of Mexican who were waiting on the other side of the border to get immigrated in the USA.
But the immigration law was not suitable for this. As a result the Mexican American workers fought to reform the policy.
Resiliency is a quality in objects to hold or recover their shape, or in people to stay intact. This is a kind of strength. If you bend a fork and it bends right back — that's resiliency. A car that is in an accident only has a few scratches has resiliency: it holds up and keeps its shape.
Answer:
Afghanistan & Tajikistan
Explanation:
Landlocked countries are those countries which do not have access to any sea or ocean in order for them to trade through the sea.
