Which of these are associated with an active lifestyle?

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

What happens in the process of photosynthesis