One of the most common methods to date volcanic rocks uses potassium radioactive parent and argon stable daughter).
They spread the catholic faith throughout the new world
Answer:
50 years
Explanation:
The first human spaceflight named Vostok 1 was launched on April 12, 1961. This spaceflight took along with it Yuri Gagarin, a Cosmonaut who came from the Soviet Union. Thus this scientist was the first to ever travel to space and enter into orbit.
The formal end of the space shuttle program was marked in August 31, 2011. The last shuttle, STS-135 that was flown by Atlantis was retired on July 2011. So the time duration between the first human spaceflight and the end of the space shuttle program spanned some 50 years.
Answer: c) Substage 3: Secondary circular reactions
Explanation:
Piaget's theory posits that children go through four different stages of cognitive development. Their mental development includes language, morals, memory and the like.
The sensorimotor stage is the earliest in Piaget's theory of cognitive development and is described as a period of tremendous growth and change.
It is divided into substages, the third of which is called SECONDARY CIRCULAR REACTIONS where the child becomes more focused on the outside world and begins to repeat activities to derive joy from them such as picking up a toy to put in their mouth.
