you have not specified consumption of what?
Direct, productive, and wasteful consumptions.
any productive activity
Opinions vary. Rendering service for the welfare of mankind is a good cause and therefore, it is considered productive.
investing activity
resource
physical and mental effort used in productive activity
A product activation system is a service that activates a DVD etc.
Investment in Human Capital
Students are engaged in the activity of learning. Learning is productive to the extent that the knowledge gained can be used for various productive purposes, especially in terms of employment. I might therefore say that students are preparing themselves to be productive in the future, rather than being productive just by being students. A person who spent a lifetime studying but never did anything with the knowledge thereby acquired, would not be productive.
As temperature increases, so does the rate of oxygen consumption in organisms, including humans. This is because higher temperatures lead to higher metabolic rates due to increased enzyme activity. Conversely, lower temperatures decrease oxygen consumption due to reduced metabolic activity.
The majority of people sleep at night and wake up in the morning, after which they go to work, go to school, or engage in some other productive activity. If there is no productive activity in which you can engage, you can probably watch television.
abolition movement -Blissful