subject
Chemistry, 18.03.2021 03:00 itzia00

Earth and the Solar System: Phenomena: Question 3
How old is our solar system?
Select one:

1. About 13.5 million years.

2. About 13.5 billion years.

3. About 4.5 million years.

4. About 4.5 billion years.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 13:30
The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
Answers: 1
question
Chemistry, 23.06.2019 01:00
Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released
Answers: 3
question
Chemistry, 23.06.2019 07:30
Can you guys answer these questions i need it before 1: 00pm
Answers: 3
question
Chemistry, 23.06.2019 10:30
Using the periodic table, complete the following. element: hydrogen symbol: hâ‚‚ molecular weight: g mass of one mole: g/mol
Answers: 2
You know the right answer?
Earth and the Solar System: Phenomena: Question 3
How old is our solar system?
Select o...
Questions
question
Mathematics, 24.11.2020 05:20
question
Social Studies, 24.11.2020 05:20
question
Mathematics, 24.11.2020 05:20
question
Biology, 24.11.2020 05:20
Questions on the website: 13722365