Подчеркните сказуемое в главном и придаточном предложениях.Укажите какое наклонение использовано в каждом предложении. - вопрос №799666

If in a given mixture the particles of solid can be seen under a microscope, one may call it a suspension. In case the calculations appear to be very complex, the computer will do them in a few minutes. It would have been impossible to launch artificial earth satellites if we had not had the improved polymeric materials and syntheticfuels. Provided the temperature and humidity of the air changed, the standard would not be accurate enough. Could rubber be combined with metals, wood and asbestos, it would greatly increase the potential use of this material. Were conditions such that crystallization would be interrupted, the iron particles would be found to have formed almost perfect cubes.