Spiral Galaxies

question 69

Multiple Choice

Spiral galaxies

• A) were present during the Big Bang.
• B) formed immediately after recombination.
• C) formed at the same time as the first stars.
• D) took some time to form, after the first stars appeared.
• E) can have existed only for the last billion years or so.

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Definitions:

Recursive Functions

Functions that call themselves within their own definition, often used for tasks that can be broken into similar subtasks.

Iterative Solution

A method of solving a problem by repeatedly applying a set of operations until a certain condition is met, typically used in loops and iterations.

Declaration Statement

A statement in programming that declares a new variable or function, specifying its type and, optionally, initializing it.

Function Body

The section of a function in a program that contains the actual statements that execute when the function is called.