Answer:
In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks.
Explanation:
Cell wall and Chloroplast which are found in Plant cell but not in animal cell.
Microwaves cause internal heating of the body tissue
Answer:
Astronomy is one of the oldest sciences