Puberty occurs when a part of the brain called the hypothalamus begins to produce a hormone (gonadotropin) that has an effect on the testes and ovaries causing an increase sex hormone — estrogen in girls and testosterone in boys.
As of 27 December, the Gospers Mountain fire had burnt over 500,000 hectares (1,200,000 acres); and, after burning approximately 512,000 hectares (1,270,000 acres) across the Lithgow, Hawkesbury and Central Coast local government areas, the NSW Rural Fire Service reported the fire as contained on 12 January 2020,
Answer:
C
Explanation:
Westward expansion, the 19th-century movement of settlers into the American West, began with the Louisiana Purchase and was fueled by the Gold Rush, the Oregon Trail and a belief in "manifest destiny."
