The difference between light waves and sound waves are that sound waves travel faster than light wave and have a frequency range while light waves have a to me range.
Answer:
Water-lifting devices are used to lift water to a height that allows users easy access to water. ... Other devices, such as the air-lift pump, are not included because they are not applicable to drinking-water supply systems. 4.2 Rope and bucket1. 4.2.1 The technology. This device is mainly used with hand-dug wells.
Answer:
D
Explanation:
Scientists use significant figures to avoid claiming more accuracy in a calculation than they actually know.
Plants in general I think.
photosynthetic organisms.
