Because History has many secrets and everyday historians are finding out more about history than we could have ever imagined. plus history is always changing so there is always gonna be something new thatsomeone could learn from history
Is this question from the missionary story?
Answer:
The hydrosphere, including all the waters on the Earth’s surface, is interconnected with the other ‘spheres’ in the Earth system, that is the geosphere (lithosphere and atmosphere), the biosphere, and the human-related anthroposphere. Water, the most widespread substance in the environment of our planet, is available, in liquid, solid, and vapor states, everywhere on Earth, albeit its abundance largely differs in space and time. Quantitative estimates of availability of water (and in particular, freshwater) in different Earth’s water stores (reservoirs) are given.
Explanation: