OBJECTIVE LIFE SCIENCE
EVOLUTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
According to scientists, the Earth is ____ years old
|
|
4, 000
|
|
|
4.6 billion
|
|
|
4.6 million
|
|
|
400, 000
|
Explanation:
Detailed explanation-1: -Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.
Detailed explanation-2: -Today, we know from radiometric dating that Earth is about 4.5 billion years old. Had naturalists in the 1700s and 1800s known Earth’s true age, early ideas about evolution might have been taken more seriously.
Detailed explanation-3: -The Earth was formed about 4.6 billion years ago, that’s 4, 600, 000, 000 years ago. It was formed by collisions of particles in a large cloud of material.
There is 1 question to complete.