The mass of the Earth is approximately 5.972 × 10²⁴ kilograms.
This massive value represents the total amount of matter contained in our planet, influencing gravity, orbital dynamics, and geological processes.
Summary:
Mass ≈ 5.972 × 10²⁴ kg
Determines Earth’s gravitational pull
Fundamental for planetary science and astronomy
Nanogram [ng]
The nanogram is a metric unit of mass equal to one-billionth of a gram.
1 nanogram = 0.000000001 grams = 10⁻⁹ grams
1 nanogram = 10⁻¹² kilograms
Symbol: ng
Key Facts:
Used in fields like biochemistry, pharmacology, and environmental science to measure extremely small masses (e.g., toxins, DNA quantities)
The prefix "nano-" means 10−910^{-9}10−9 (one billionth)
Smaller than micrograms and widely used for precision measurements at molecular scales
The nanogram allows scientists to quantify minute amounts of substances with great accuracy.