Answer:
6.02 x 10²³ seconds ≈ 1.909 x 10¹⁵ decades
Explanation:
Second is the SI unit of time, which is denoted by the symbol s. In one minute there are 60 seconds.
So, in one hour there are 60 mins = 60 × 60 seconds = 3600 seconds.
In one day there are 24 hours = 24 × 60 minutes = 24 × 60 × 60 seconds = 86,400 seconds.
In one year there are approximately 365 days = 365 × 24 hours = 365 × 24 × 60 minutes = 365 × 24 × 60 × 60 seconds = 31536000 seconds.
Since, a decade is defined as the period<u> of ten years.</u>
So, a decade = 10 years = 10 × 365 days = 10 × 365 × 24 hours = 10 × 365 × 24 × 60 minutes = 10 × 365 × 24 × 60 × 60 seconds = 315360000 seconds.
Since, 315360000 seconds = 1 decade
Therefore, 6.02 x 10²³ seconds = 6.02 x 10²³ seconds ÷ 315360000 seconds ≈ 1.909 x 10⁻⁸ x 10²³ = 1.909 x 10¹⁵ decades
