Problem: Boston has a continental climate with some maritime influence, and using the 3 C (27 F) coldest month (January) isotherm, the city lies within the transition zone from a humid subtropical climate (Koppen Cfa) to a humid continental climate (Koppen Dfa), although the suburbs north and west of the city are significantly colder in winter and solidly fall under the latter categorization; the city lies at the transition between USDA plant hardiness zones 6b (most of the city) and 7a (Downtown, South Boston, and East Boston neighborhoods). Summers are typically warm to hot, rainy, and humid, while winters oscillate between periods of cold rain and snow, with cold temperatures. Spring and fall are usually mild, with varying conditions dependent on wind direction and jet stream positioning. Prevailing wind patterns that blow offshore minimize the influence of the Atlantic Ocean. The hottest month is July, with a mean temperature of 73.4 F (23.0 C). The coldest month is January, with a mean of 29.0 F (1.7 C). Periods exceeding 90 F (32 C) in summer and below freezing in winter are not uncommon but rarely extended, with about 13 and 25 days per year seeing each, respectively. The most recent sub-0 F (18 C) reading occurring on February 14, 2016 when the temperature dipped down to 9 F (23 C), the coldest reading since 1957. In addition, several decades may pass between 100 F (38 C) readings, with the most recent such occurrence on July 22, 2011 when the temperature reached 103 F (39 C). The city's average window for freezing temperatures is November 9 through April 5.[c] Official temperature records have ranged from 18 F (28 C) on February 9, 1934, up to 104 F (40 C) on July 4, 1911; the record cold daily maximum is 2 F (17 C) on December 30, 1917, while, conversely, the record warm daily minimum is 83 F (28 C) on August 2, 1975.
What is the hottest month in Boston?
The answer is the following: July

Problem: Bacteria are further divided into lithotrophs that use inorganic electron donors and organotrophs that use organic compounds as electron donors. Chemotrophic organisms use the respective electron donors for energy conservation (by aerobic/anaerobic respiration or fermentation) and biosynthetic reactions (e.g., carbon dioxide fixation), whereas phototrophic organisms use them only for biosynthetic purposes. Respiratory organisms use chemical compounds as a source of energy by taking electrons from the reduced substrate and transferring them to a terminal electron acceptor in a redox reaction. This reaction releases energy that can be used to synthesise ATP and drive metabolism. In aerobic organisms, oxygen is used as the electron acceptor. In anaerobic organisms other inorganic compounds, such as nitrate, sulfate or carbon dioxide are used as electron acceptors. This leads to the ecologically important processes of denitrification, sulfate reduction, and acetogenesis, respectively.
In what organisms is oxygen used as eelectron acceptor?
The answer is the following: anaerobic organisms

Problem: Numerous communities of dark-skinned peoples are present in North Africa, some dating from prehistoric communities. Others are descendants of the historical Trans-Saharan trade in peoples and/or, and after the Arab invasions of North Africa in the 7th century, descendants of slaves from the Arab Slave Trade in North Africa.
Who are they descendants of?
The answer is the following: Trans-Saharan trade in peoples

Problem: FBI records show that 85% of COINTELPRO resources targeted groups and individuals that the FBI deemed "subversive", including communist and socialist organizations; organizations and individuals associated with the Civil Rights Movement, including Martin Luther King, Jr. and others associated with the Southern Christian Leadership Conference, the National Association for the Advancement of Colored People, and the Congress of Racial Equality and other civil rights organizations; black nationalist groups; the American Indian Movement; a broad range of organizations labeled "New Left", including Students for a Democratic Society and the Weathermen; almost all groups protesting the Vietnam War, as well as individual student demonstrators with no group affiliation; the National Lawyers Guild; organizations and individuals associated with the women's rights movement; nationalist groups such as those seeking independence for Puerto Rico, United Ireland, and Cuban exile movements including Orlando Bosch's Cuban Power and the Cuban Nationalist Movement. The remaining 15% of COINTELPRO resources were expended to marginalize and subvert white hate groups, including the Ku Klux Klan and the National States' Rights Party.
What were the key white hate groups targeted?
The answer is the following:
Ku Klux Klan and the National States' Rights Party