💡 ‘Congestion’ means too many vehicles causing slow traffic. ‘Density’ refers to concentration of people or buildings, and ‘sprawl’ means uncontrolled city expansion.

💡 ‘Bipedalism’ specifically means walking upright on two legs. ‘Evolution’ is the general change process, and ‘transition’ means changing from one state to another.

💡 ‘Mixed-use’ describes combining different functions in one place. ‘High-rise’ only means tall, and ‘well-developed’ means advanced but doesn’t specify multiple uses.

💡 ‘Transition’ means the process of changing from one state to another. ‘Development’ is general growth, and ‘stage’ is a period, not the change itself.

💡 ‘Homo erectus’ is known for using fire and leaving Africa. ‘Homo habilis’ made simple tools, and ‘Homo sapiens’ is modern humans who came later.

💡 ‘Poverty rate’ measures the percentage of poor people. ‘Unemployment’ measures people without jobs, and ‘GDP’ measures total economic production.

💡 ‘Infrastructure’ means the basic physical systems needed for a country to function. ‘Development’ is too general, and ‘sustainability’ refers to environmental protection.

💡 ‘Under-developed’ means lacking modern industry and advancement. ‘Developed’ means advanced, and ‘over-developed’ means excessively built-up.

💡 ‘Evolution’ specifically describes biological change across generations. ‘Development’ is general growth, and ‘transition’ is changing between states.

💡 ‘Sprawl’ means uncontrolled spreading of city development. ‘Density’ refers to concentration in an area, and ‘congestion’ means too much traffic.

💡 ‘Develop’ means to improve something through planning and effort. ‘Evolve’ suggests natural biological change, ‘measure’ means to assess, and ‘transition’ means to change state.

💡 ‘Primate’ is the animal group including humans and apes. ‘Ancestor’ means someone who lived before us, ‘species’ is too general, and ‘indicator’ means a sign.

💡 ‘Indicators’ are specific measurable factors showing progress. ‘Measures’ can mean actions taken, ‘stages’ are periods, and ‘transitions’ are changes between states.

💡 ‘Over-developed’ means excessively built-up beyond what is desirable. ‘Well-developed’ is positive, ‘developed’ means advanced, and ‘under-developed’ means lacking development.

💡 ‘Service economy’ specifically describes systems based on providing services. ‘Industrial’ focuses on manufacturing, ‘agricultural’ on farming, and ‘developed’ describes advancement generally.

💡 ‘Brain capacity’ specifically measures brain size in volume. ‘Cognitive ability’ is mental skill, ‘evolution’ is the change process, and ‘development’ is general growth.

💡 ‘Density’ measures concentration of people or buildings in an area. ‘Congestion’ is about traffic, ‘capacity’ is about size or ability, and ‘sprawl’ is uncontrolled expansion.

💡 ‘Development’ here means advancement and change. ‘Evolution’ implies biological processes, ‘transition’ is changing between states, and ‘sustainability’ is about environmental protection.

💡 ‘Stage’ means a distinct period or level in a process. ‘Transition’ is the change itself, ‘development’ is the whole process, and ‘indicator’ is a measurement.

💡 ‘Ancestors’ are people or animals from the past we descended from. ‘Primates’ is the animal group, ‘indicators’ are measurements, and ‘species’ is a biological category.