what harm is caused to our life when hydrosphere get polluted
Answers
Pollution of the hydrosphere is a major problem. When we think of pollution, we sometimes only think of things like plastic, bottles, oil and so on. But any chemical that is present in the hydrosphere in an amount that is not what it should be is a pollutant. Animals and plants that live in the Earth's water bodies are specially adapted to surviving within a certain range of conditions. If these conditions are changed (e.g. through pollution), these organisms may not be able to survive. Pollution then, can affect entire aquatic ecosystems. The most common forms of pollution in the hydrosphere are waste products from humans and from industries, nutrient pollution e.g. fertiliser runoff which causes eutrophication (an excess of nutrients in the water leading to excessive plant growth) and toxic trace elements such as aluminium, mercury and copper to name a few. Most of these elements come from mines or from industries.
Answer:
A system is a collection of
interdependent parts enclosed within
a defined boundary. Within the
boundary of the Earth is a collection
of four interdependent parts called
“spheres“: the lithosphere,
hydrosphere, biosphere, and
atmosphere. The spheres are so
closely connected that a change in
one sphere often results in a change in one or more of the other spheres.
Such changes that take place within an ecosystem are referred to as events.
Events can occur naturally, such as an earthquake or a hurricane, or they can
be caused by humans, such as an oil spill or air pollution. An event can cause
changes to occur in one or more of the spheres, and/or an event can be the
effect of changes in one or more of Earth’s four spheres. This two-way cause
and effect relationship between an event and a sphere is called an interaction.
Interactions also occur among the spheres. For example, a change in the
atmosphere can cause a change in the hydrosphere, and vice versa. Below are a
few examples:
•Humans (biosphere) built a dam out of rock materials (lithosphere).
•Water in the lake (hydrosphere) seeps into the cliff walls behind the
dam, becoming groundwater (lithosphere), or evaporating
into the air (atmosphere).
•Humans (biosphere) harness energy from the water (hydrosphere) by
having it spin turbines (lithosphere) to produce electricity.
Understanding the interactions that occur in the Earth System also helps
people to prepare for the effects of natural disasters such as volcanic
eruptions, tsunamis, and severe storms. This understanding allows people to
predict things like how far and in what direction the lava will flow or the
storm surge will rise and help them to evaluate their options throughout the