Q:

Why do we need rain?

A:

Quick Answer

Rain is needed as a source of fresh water, which is essential for the survival of humans, plants and animals. Rain fills aquifers, lakes and rivers, maintaining the lives of living organisms. Rain maintains natural features, such as forests.

Know More
Why do we need rain?
Credit: Rajarshi MITRA Flickr CC-BY-2.0

Full Answer

The process of evaporation exhausts fresh water sources, necessitating rain to replace the lost water. Rain is essential because it removes the need for transporting water inland and desalination activities. The flow of minerals within the soil, and from the land to the sea, is mediated by rain. Rain is needed to sustain agricultural processes, such as farming and cattle grazing.

Learn More

Related Questions

  • Q:

    How does acid rain affect buildings?

    A:

    The Virtual Chembook of Elmhurst College explains that acid rain considerably increases the rate of corrosion on marble, sandstone and limestone buildings. Sulfur dioxide and water forms sulfurous acid, and sulfur trioxide and water creates sulfuric acid, which reacts with limestone in a neutralization reaction. Limestone dissolves and crumbles as calcium sulfate is soluble in water.

    Full Answer >
    Filed Under:
  • Q:

    Why is the rain forest so important to the world?

    A:

    Rain forests are important to the world because they provide a habitat for millions of species of organisms, they regulate the world's climate, they store nearly half of the world's rainwater and they contain plants that are used in modern medications. Rain forests also absorb massive amounts of carbon dioxide.

    Full Answer >
    Filed Under:
  • Q:

    What chemicals cause acid rain?

    A:

    Several chemicals cause acid rain, although sulfur dioxide and nitrogen oxide are the primary contributors. Sulfur dioxide and nitrogen oxide contribute largely to the development of acid rain, although several natural sources, such as volcanic eruptions and decaying vegetation, cause acid rain as well.

    Full Answer >
    Filed Under:
  • Q:

    What causes acid rain?

    A:

    Acid rain is caused by the mixing of moisture in the atmosphere with sulfur dioxide and nitrous oxides, forming sulfuric acid and nitric acid in the precipitation that falls to the earth. In the Northern Hemisphere, the most common source of these chemicals in the atmosphere is air pollution from industry, generation of electricity and automobiles.

    Full Answer >
    Filed Under:

Explore