Grade 7 Exam  >  Grade 7 Notes  >  Social Studies  >  Cheatsheet: The Americas: Society and Environment

Cheatsheet: The Americas: Society and Environment

1. Geography of the Americas

1.1 Major Regions

RegionKey Characteristics
North AmericaIncludes Canada, United States, Mexico; diverse climates from Arctic to desert
Central AmericaConnects North and South America; tropical climate; includes seven countries
South America12 countries; Amazon rainforest; Andes Mountains; varied climates
CaribbeanIsland nations and territories; tropical climate; volcanic and coral islands

1.2 Major Landforms

  • Rocky Mountains: Major mountain range in western North America extending from Canada to New Mexico
  • Andes Mountains: Longest continental mountain range in the world; runs along western South America; over 7,000 km long
  • Amazon River: Second longest river in world; flows through South America; largest drainage basin
  • Mississippi River: Major river system in North America; drains central United States
  • Great Plains: Vast grassland region in central North America
  • Canadian Shield: Large area of exposed ancient rock in northern Canada
  • Appalachian Mountains: Mountain range in eastern North America; older and lower than Rockies

1.3 Climate Zones

Climate ZoneLocation and Features
Arctic/TundraNorthern Canada and Alaska; permafrost; very cold winters; short summers
TemperateMuch of United States and southern Canada; four distinct seasons; moderate rainfall
DesertSouthwestern United States, northern Mexico, Atacama in Chile; low precipitation
TropicalCentral America, Caribbean, northern South America; hot and humid year-round
MediterraneanCalifornia coast, central Chile; mild wet winters; hot dry summers

2. Indigenous Peoples and Early Civilizations

2.1 Major Civilizations Before European Contact

CivilizationLocation and Key Features
MayaCentral America and southern Mexico (250-900 CE); advanced writing system; mathematics; astronomy; pyramid temples
AztecCentral Mexico (1345-1521); capital at Tenochtitlan; advanced agriculture; tribute empire
IncaWestern South America (1438-1533); capital at Cuzco; extensive road system; terrace farming; no written language

2.2 Indigenous Groups of North America

  • Inuit: Arctic regions; hunting and fishing; igloos and seal skin tents; kayaks and dog sleds
  • Iroquois: Eastern woodlands; longhouses; farming (corn, beans, squash); confederacy of six nations
  • Plains Nations: Great Plains; nomadic; buffalo hunting; tepees; horses after European contact
  • Northwest Coast: Pacific coast; fishing (salmon); totem poles; potlatch ceremonies; plank houses
  • Pueblo: Southwest; adobe dwellings; farming with irrigation; cliff dwellings

2.3 Adaptations to Environment

Environmental FeatureAdaptation
Cold Arctic climateWarm clothing from animal skins; hunting marine mammals; seasonal migration
Dense forestsClearing land for agriculture; wooden housing; hunting and gathering
GrasslandsFollowing buffalo herds; portable housing; use of entire animal for multiple purposes
MountainsTerrace farming; llamas and alpacas for transport; stone construction
RainforestSlash-and-burn agriculture; hunting and gathering; using forest resources

3. European Exploration and Colonization

3.1 Key Explorers

ExplorerCountry and Achievement
Christopher ColumbusSpain; 1492 voyage to Caribbean; opened Americas to European colonization
John CabotEngland; 1497 explored Newfoundland; claimed North America for England
Jacques CartierFrance; explored St. Lawrence River 1534-1542; claimed Canada for France
Hernán CortésSpain; conquered Aztec Empire 1519-1521
Francisco PizarroSpain; conquered Inca Empire 1532-1533

3.2 Colonial Powers and Territories

  • Spanish Colonies: Mexico, Central America, most of South America, Caribbean islands, Florida, Southwest United States
  • French Colonies: Canada (New France), Louisiana territory, Caribbean islands (Haiti, Martinique)
  • British Colonies: Thirteen colonies on Atlantic coast, Canada (after 1763), Caribbean islands
  • Portuguese Colonies: Brazil (largest territory in South America)
  • Dutch Colonies: New Amsterdam (later New York), Suriname, Caribbean islands

3.3 Impact on Indigenous Peoples

Impact TypeEffects
DiseaseSmallpox, measles, influenza killed millions; no immunity to European diseases
Land LossForced removal from traditional territories; establishment of reservations
Cultural ChangesConversion to Christianity; loss of languages; forced assimilation; residential schools
Economic ChangesIntroduction to European trade goods; fur trade; forced labor systems

4. Environmental Features and Resources

4.1 Major Biomes

BiomeLocation and Characteristics
TundraNorthern Canada, Alaska; permafrost; low vegetation; caribou, polar bears
Boreal Forest (Taiga)Canada, Alaska; coniferous trees; long cold winters; moose, wolves, bears
Temperate ForestEastern North America; deciduous and mixed trees; four seasons; diverse wildlife
GrasslandGreat Plains; prairie grasses; bison, prairie dogs; now mostly farmland
Tropical RainforestAmazon Basin, Central America; high biodiversity; year-round rainfall; dense canopy
DesertSouthwestern North America, Atacama; low rainfall; cacti, reptiles, adapted mammals

4.2 Natural Resources

  • Forests: Timber from Canada, Pacific Northwest, Amazon; paper products; building materials
  • Minerals: Gold, silver, copper in Andes and western North America; iron ore in Canada and Brazil
  • Fossil Fuels: Oil and natural gas in Alberta, Texas, Gulf of Mexico, Venezuela; coal in Appalachia
  • Agriculture: Wheat in Great Plains; corn in Midwest; soybeans in United States and Brazil; coffee in Colombia and Brazil
  • Fisheries: Atlantic and Pacific coasts; salmon, cod, shellfish; overfishing concerns
  • Fresh Water: Great Lakes; major river systems; groundwater; hydroelectric power

4.3 Environmental Challenges

ChallengeDescription and Impact
DeforestationAmazon rainforest clearing for cattle ranching and agriculture; loss of biodiversity; climate change impact
Water PollutionIndustrial waste, agricultural runoff; affects drinking water and ecosystems
Air PollutionVehicle emissions, industrial activities; smog in major cities like Mexico City and Los Angeles
Climate ChangeArctic ice melting; changing weather patterns; sea level rise; impacts on agriculture
Habitat LossUrban expansion; species extinction; disruption of ecosystems

5. Population and Settlement Patterns

5.1 Population Distribution

  • Urban Areas: Most people live in cities; major urban centers include New York, Mexico City, São Paulo, Los Angeles, Toronto
  • Coastal Concentration: Higher population density along coasts; access to trade and resources
  • Sparse Regions: Amazon rainforest, northern Canada, Andes Mountains have low population density
  • Climate Influence: Moderate climates attract larger populations; extreme climates have fewer people

5.2 Largest Cities

CityCountry and Significance
Mexico CityMexico; capital; over 21 million people; built on former Aztec capital Tenochtitlan
São PauloBrazil; largest city in South America; over 22 million people; economic center
New York CityUnited States; over 8 million; financial and cultural center; major port
Los AngelesUnited States; nearly 4 million; entertainment industry; Pacific coast location
TorontoCanada; largest Canadian city; over 6 million metro area; multicultural

5.3 Migration Patterns

  • Rural to Urban: People moving from countryside to cities seeking jobs and opportunities
  • Immigration: People from Latin America, Asia, Europe coming to North America
  • Historical Movements: European colonization; African forced migration through slave trade; Asian immigration for railroad work
  • Internal Migration: Movement within countries from colder to warmer regions; economic opportunities

6. Economic Activities

6.1 Types of Economic Activities

SectorDescription and Examples
PrimaryExtracting natural resources; farming, fishing, mining, forestry, oil drilling
SecondaryManufacturing and processing; automobile production, food processing, construction
TertiaryServices; retail, healthcare, education, banking, tourism
QuaternaryInformation and technology; research, software development, consulting

6.2 Agriculture

  • Commercial Farming: Large-scale production for sale; common in United States and Canada; wheat, corn, soybeans
  • Subsistence Farming: Growing food for family use; common in parts of Central and South America
  • Plantation Agriculture: Large farms growing single crop; coffee, bananas, sugar cane; historical use of slave labor
  • Cattle Ranching: Extensive in Argentina, Brazil, United States; beef production

6.3 Trade and Economic Systems

Agreement/SystemDescription
NAFTA/USMCATrade agreement between United States, Canada, and Mexico; reduces tariffs; promotes free trade
MERCOSURSouth American trade bloc; includes Brazil, Argentina, Uruguay, Paraguay
Export EconomiesMany countries export raw materials (oil, minerals, crops) and import manufactured goods

7. Cultural Characteristics

7.1 Languages

  • English: Dominant in United States, Canada (with French), Caribbean islands
  • Spanish: Mexico, Central America, most of South America, Caribbean; most widely spoken
  • Portuguese: Brazil (largest Portuguese-speaking country in world)
  • French: Canada (Quebec), Haiti, French Guiana
  • Indigenous Languages: Quechua, Guaraní, Mayan languages; still spoken by millions

7.2 Religions

ReligionDistribution and Notes
ChristianityDominant religion; Roman Catholicism in Latin America; Protestantism in North America
Indigenous BeliefsTraditional spiritual practices; often blended with Christianity; animism; respect for nature
Other ReligionsJudaism, Islam, Buddhism, Hinduism in urban areas due to immigration

7.3 Cultural Diversity

  • Mestizo Culture: Blending of European and Indigenous cultures in Latin America
  • Multiculturalism: United States and Canada have diverse immigrant populations
  • African Influence: Strong in Caribbean and Brazil; music, food, religion (like Candomblé)
  • Holidays and Festivals: Day of the Dead (Mexico), Carnival (Brazil), Thanksgiving (United States and Canada), Canada Day, Independence Days

8. Government and Political Systems

8.1 Types of Government

TypeCountries and Features
Federal RepublicUnited States, Brazil, Mexico; power divided between national and state/provincial governments
Parliamentary DemocracyCanada; elected parliament; Prime Minister leads government; constitutional monarchy
Presidential DemocracyMost Latin American countries; president elected separately from legislature

8.2 Political History

  • Independence Movements: United States (1776), Haiti (1804), Latin American countries (1810s-1820s), Canada (gradual to 1867)
  • Revolutions: American Revolution, Mexican Revolution (1910), Cuban Revolution (1959)
  • Colonial Legacy: Borders drawn by European powers; lasting economic and political impacts

9. Human-Environment Interaction

9.1 Modifying the Environment

ModificationPurpose and Examples
DamsHydroelectric power, flood control; Hoover Dam, Itaipu Dam (Brazil-Paraguay border)
IrrigationAgriculture in dry areas; California Central Valley, Inca terrace systems
DeforestationClearing land for farming and ranching; Amazon, original eastern forests of North America
MiningExtracting minerals; mountaintop removal; open-pit mines; strip mining
Urban DevelopmentBuilding cities; drainage of wetlands; canal systems; road networks

9.2 Adapting to the Environment

  • Housing: Adobe in hot dry climates; wood in forests; igloos in Arctic; stilt houses in flood areas
  • Transportation: Boats in coastal and river areas; cars and highways in developed areas; llamas in mountains
  • Clothing: Light fabrics in tropics; heavy furs in Arctic; ponchos in Andes
  • Food: Fish near coasts; corn in Americas; potatoes from Andes; maple syrup in Canada

9.3 Conservation Efforts

  • National Parks: Yellowstone (first national park, 1872), Banff, Galápagos; protect ecosystems and wildlife
  • Reserves: Amazon rainforest reserves; marine protected areas; wildlife refuges
  • Sustainable Practices: Organic farming; renewable energy (solar, wind, hydroelectric); recycling programs
  • International Agreements: Protection of endangered species; climate change initiatives; pollution controls

10. Current Issues and Challenges

10.1 Social Issues

  • Poverty: Income inequality in many countries; urban slums; rural poverty
  • Education: Varying access to quality education; literacy rates differ by country and region
  • Healthcare: Access varies widely; public systems in Canada; private and public mix in United States
  • Indigenous Rights: Land claims; cultural preservation; self-governance; reconciliation efforts

10.2 Economic Challenges

ChallengeDescription
Resource DependenceSome economies rely heavily on single resource (oil, minerals); vulnerable to price changes
UnemploymentJob scarcity in some regions; youth unemployment; factory closures
Economic InequalityGap between rich and poor; concentration of wealth; limited social mobility
GlobalizationCompetition from other countries; outsourcing; changing job markets

10.3 Environmental Concerns

  • Amazon Deforestation: Loss of "lungs of the Earth"; impacts on global climate and biodiversity
  • Water Scarcity: Droughts in western North America; competition for water resources
  • Pollution: Ocean plastic; air quality in cities; contaminated water sources
  • Climate Change: Rising sea levels threaten Caribbean islands; changing agricultural zones; extreme weather events
  • Species Extinction: Habitat loss; overhunting; declining populations of wildlife
The document Cheatsheet: The Americas: Society and Environment is a part of the Grade 7 Course Social Studies for Grade 7.
All you need of Grade 7 at this link: Grade 7
Explore Courses for Grade 7 exam
Get EduRev Notes directly in your Google search
Related Searches
Cheatsheet: The Americas: Society and Environment, Objective type Questions, Viva Questions, Summary, Previous Year Questions with Solutions, video lectures, Cheatsheet: The Americas: Society and Environment, MCQs, pdf , Cheatsheet: The Americas: Society and Environment, shortcuts and tricks, ppt, Semester Notes, past year papers, study material, Free, mock tests for examination, practice quizzes, Important questions, Exam, Sample Paper, Extra Questions;