Sally ride entered space in which spacecraft?

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

Ab c or d ? i’m not sure what the answer is

Write a balanced equation showing the formation of copper (ii) nitrite from its elements