Определите Participle I та Participle II и установите функции каждого из них, является ли оно определением, обстоятельством, частью глагола-сказуемого
1. Studying the properties of electrons physicists constructed a very accurate device.
2. Alloys, made from copper and nickel, are corrosion – resistant.
3. Radio signal is transmitted by means of radio waves.
4. When heated up to 100° C water boils.