Consider the following statements in respect of a jet engine and a rocket: 1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space. 2. A rocket carries its own supply of oxygen in the gas form, and fuel. Which of the statements given above is/are correct?

Statement 1 is correct because a jet engine is an air breathing engine. It draws in oxygen from the surrounding atmosphere to burn its fuel. Since there is no air in space, a jet engine cannot function there. Statement 2 is correct because a rocket is designed to operate in the vacuum of space. To achieve this, it must carry its own oxidizer, such as oxygen, along with its fuel. While the oxygen can be stored in liquid or gaseous form, the fundamental principle is that it carries its own supply. Since both statements accurately describe the functional differences regarding oxygen supply between jet engines and rockets, the correct answer is Both 1 and 2.