Sample are the characteristics of the individuals of the population being studied
A thick tree ring indicates that the year was good for its growth with good feeding, enough water and sun. The thickness of the tree can suggest when the growing time was longer at the time of warmer times and when shorter with cooler times. With this explained, we can choose Warm year as the correct answer.
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.
Or people based on common features,traits o rcharacteris
