Electricity and magnetism
Answer:Total Population: 428 million people.
Largest city: Sao Paulo (Brazil)
Life expectancy: 72 (males) 79 (females)
Highest Mountain: Aconcagua (6962 meters above the sea)
Land area: 17,840,000 square kilometers (6,890,000 square miles)
Largest Lake: Lake Titicaca.
Longest River: Amazon River.
Explanation: Hope that helps, it on googIe
The correct answer is Ray Stannard Baker.
Ray Baker (also referred to by his pen name of David Grayson) was an American journalist who was prevalent during the late 19th century and early 20th century. During his muckraking days for McClure magazine, Baker was known for investigative journalism alongside the likes of Ida Tarbell and Lincoln Steffen.