Threats include:water controlintroduced species<span>development</span>
Bullfighting was brought to Mexico by the Spanish.
4) Polaris
Stars emit light with energy generated by nuclear fusion, think of the Sun as an example. Polaris is a star, it's the brightest star in the little bear constellation, and therefore the correct answer.
highly educated middle class
Answer:
Developmental science is an interdisciplinary scientific field that synthesizes perspectives from biology, psychology, and sociology in order to understand behavioral and psychological aspects of human development.