I don't understand what his means
Answer:
Brianna pushes against a door that is stuck in but No work is done
Explanation:
Force: this simply an action and it involves either a pull or a push.
Energy: it is ability to do work.
Work: work is done when force is applied over a distance.
Brianna pushes against a door that is stuck in; a force is exerted with a form of energy but no any form of movement. Work is done when the exerted force is translated to kinetic energy over a distance.
Rapid industrialization and raise in population increases the sources of population and the rate of discharge of wastes. Mass production of products also results in the production of wastes and some industries and countries don't have the technology to treat these wastes before discharging them into the environment.
Answer: D
Explanation:
By 2100 Global warming would have more than double as the release of chlorofluorocarbons into the atmosphere does not seem to abase. The industrial zone of Pittsburgh, US contributes a lot to the increase in the atmospheric temperatures of the surrounding areas. The continually high demand for wood charcoal by pharmaceutical companies, households, and food vendors in developing countries would mean more deforestation which consequently expose the earth's crust to high insolatoon from the solar system.
However, the replacement of natural landscape by human landscape is on the rise. In the UAE, Dubai alone has u number of construction projects, from skyscrappers to artificial islands. More trees would be removed to make these construction projects possible. The consequent effect of all these cannot be anything other than more warming of the globe.
