When Did Life First Appear on Earth

question 17

Multiple Choice

When did life first appear on Earth?

• A) 14 billion years ago
• B) 400 million years ago
• C) 4.6 billion years ago
• D) 65 million years ago
• E) 3.4 billion years ago

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Definitions:

Class Reader

Refers to a class in Java that reads characters from a stream of input, serving as a basis for reading data from various sources.

Writer

An object in programming used to write data to a destination, such as a file or a stream.

Derived

A class that inherits properties and behaviors from a parent class, also known as a subclass.

Legal In Java

Refers to syntax, constructs, or operations that are permissible and correctly interpreted by the Java programming language.