Shouldn't this be under physics ?
But the energy of the stars comes from nuclear fusion processes. For stars like the sun which have internal temperatures less than fifteen million Kelvin, the dominant fusion process is proton-proton fusion. For more massive stars which can achieve higher temperatures, the carbon cycle fusion becomes the dominant mechanism. For older stars which are collapsing at the center, the temperature can exceed one hundred million Kelvin and initiate the helium fusion process called the triple-alpha process.
So Stage 3, Hydrogen fuses to form helium and nuclear reactions begin to occur.
The answer is letter B, According to Albert Bandura, learning can occur by watching others modeling what they do or say.
In the social learning theory, he agrees with the behaviorist learning theories of operant conditioning and classical conditioning, in 1961 Bandura states that children observe the people around them in various ways, this illustration is during the famous Bobo doll experiment.
Gun powder was used for military purposes in the 919 A.D. It killed many people in China. It was explosive.
People can not change unless THEY want to. People may say, "I wish I could do this, or I wanna do that, or I wanna stop doing this." What they fail to realize is that they will get no where in life until THEY make decisions for themselves. Stay strong!
It is important because nobody was made better than enyone els