Lowest point on a wave

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?

What is the source of continuous heat and energy that we receive from the sun