The list of various things needed for a sustainable development.

environmental conservation, investment in renewable energies, saving water, supporting sustainable mobility, and innovation in sustainable construction and architecture.

Explanation:

For human development we need some development goals or targets so that we can achieve or aim for them. for the development of the country are used to calculate income and other factors. the other factors are median income, child mortality rate, literacy rate, recent attendance rate, human development index

there is an explationation of this on a site called crash   course world history 1

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;