Final answer:
The question seeks to understand how the white British population perceives the consequences of ethnic minorities in various societal aspects. While specific perceptions vary, functionalists in sociology would focus on how societal structures affect job availability in inner cities, and environmental sociologists would study the interplay between human societies and the environment considering the global population growth.
Step-by-step explanation:
The question pertains to perceptions within the white British population regarding the role of ethnic minorities. It's a broad sociological topic that relates to various social issues including economic revitalization, social integration, job opportunities, and strain on resources. Each of these aspects has a different impact and can be perceived differently by different segments of the population.
In the context of sociology, particularly with regard to functionalism, issue (a) would likely be addressed by a functionalist who examines how inner-city areas might become ghettoized, thereby limiting availability to jobs and creating barriers to social mobility. Functionalists focus on the ways in which different parts of society work together to maintain stability, so they would be interested in how community organization affects job availability.
Concerning environmental sociology, the focus is on the relationship between human societies and the environment, including how urbanization and industrialization lead to increased strain on the environment and contribute to social issues like environmental racism. This domain is concerned with understanding the impacts of human activity on environmental resources and finding ways to reduce harm while ensuring equitable access to resources for all groups.
In the field of demography, the statement mentions that the population of the planet doubled in fifty years, indicating an increase from a previous population to a more recent figure. To ascertain the correct figure, one would consider historical data on global population growth.