As we know f is inversely proportion to time so its frequency is 1/4 Hz
A battery is a device that stores chemical energy and converts it to electrical energy. Two terminals made of different chemicals (typically metals), the anode and the cathode; and the electrolyte, which separates these terminals.
Hope I get it and hope this helps
The pattern of weather in an area over a long period of time is called 'climate'. <em>(B)</em>
In other words:
-- What it's like outside your house today, in the middle of March, is the 'weather'.
-- The 100-years average of what it's like outside your house in the middle of March is the 'climate'.
Climate feedbacks: processes that can either amplify or diminish the effects of climate forcings. A feedback that increases an initial warming is called a "positive feedback." A feedback that reduces an initial warming is a "negative feedback." So I guess it is ?