total annual usage of energy by humankind is in order of
Answers
Answered by
0
Since the options are not given, I am giving an assumed answer.
The correct answer could be - GigaJoules. or 10⁹ Joules.
The average energy used by a human being per day = 2000 Kcal.
Converting the Kcal to joules, we get, 2000 x 4200 J = 8.4 × 10⁶ J
This is because 1 Kcal = 4200 J.
So, if it is 8.4 × 10⁶ J for 1 day, then for 1 year it will be = 8.4 × 10⁶ J x 365 days.
= 3066 x 10⁶ Joules = 3.066 x 10⁹ J
Since 10⁹ is referred to as 'Giga', we can say that the total annual energy consumption of humans is 3.066 GigaJoules.
The correct answer could be - GigaJoules. or 10⁹ Joules.
The average energy used by a human being per day = 2000 Kcal.
Converting the Kcal to joules, we get, 2000 x 4200 J = 8.4 × 10⁶ J
This is because 1 Kcal = 4200 J.
So, if it is 8.4 × 10⁶ J for 1 day, then for 1 year it will be = 8.4 × 10⁶ J x 365 days.
= 3066 x 10⁶ Joules = 3.066 x 10⁹ J
Since 10⁹ is referred to as 'Giga', we can say that the total annual energy consumption of humans is 3.066 GigaJoules.
Similar questions