As Earth Evolved with Life, an Oxygen Abundance of Only

question 38

Short Answer

As Earth evolved with life, an oxygen abundance of only 0.1 percent would have created a(n) _______________, protecting organisms from the Sun's ultraviolet radiation.

---

Definitions:

Firing

In programming, initiating or triggering an event programmatically, such as clicking a button or sending data.

Nonnegative Integer

An integer value that is greater than or equal to zero, implying it includes all positive integers and zero.

FileNotFoundException

A specific type of exception in many programming languages, including Java, that is thrown when an attempt to access a file that does not exist or cannot be opened occurs.

Zero-Argument Constructor

A zero-argument constructor is a type of constructor method in object-oriented programming that does not take any parameters, used to create objects with default settings or values.