Final answer:
Weather describes current conditions in the atmosphere, while climate refers to the long-term average of these conditions over a period of years. The correct option is d) long term.
Step-by-step explanation:
Weather describes current atmospheric conditions. It refers to the state of the atmosphere at a specific time and place, including factors like temperature, humidity, wind speeds, and atmospheric pressure.
Weather can change rapidly and is often forecasted in short cycles, such as daily or 48-hour forecasts. In contrast, climate is the term for the long-term average of weather conditions in an area, taking into account temperature and precipitation over a period of years.