Water Cycle:

The Water Cycle (also known as the hydrologic cycle) is the
journey water takes as it circulates from the land to the sky and back again.
The Sun's heat provides energy to evaporate water from the Earth's
surface (oceans, lakes, etc.). Plants also lose water to the air (this is
called transpiration). The water vapor eventually condenses, forming tiny
droplets in clouds. When the clouds meet cool air over land, precipitation
(rain, sleet, or snow) is triggered, and water returns to the land (or sea).
Some of the precipitation soaks into the ground. Some of the underground water is trapped between rock or clay layers; this is called groundwater. But most of the water flows downhill as runoff (above ground or underground), eventually returning to the seas as slightly salty water.
journey water takes as it circulates from the land to the sky and back again.
The Sun's heat provides energy to evaporate water from the Earth's
surface (oceans, lakes, etc.). Plants also lose water to the air (this is
called transpiration). The water vapor eventually condenses, forming tiny
droplets in clouds. When the clouds meet cool air over land, precipitation
(rain, sleet, or snow) is triggered, and water returns to the land (or sea).
Some of the precipitation soaks into the ground. Some of the underground water is trapped between rock or clay layers; this is called groundwater. But most of the water flows downhill as runoff (above ground or underground), eventually returning to the seas as slightly salty water.
Carbon Cycle:

All living things are made of carbon. Carbon is a part of the ocean, air, and rocks. Because the Earth is a dynamic place, carbon does not stay still. In the atmosphere, carbon is attached to some oxygen in a gas called carbon dioxide. Plants use carbon dioxide and sunlight to make their own food and grow. The carbon becomes part of the plant. Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years. When humans burn fossil fuels, most of the carbon enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place. In fact, ice cores show us that there is now more carbon dioxide in the atmosphere than there has been in the last 420,000 years.
Nitrogen Cycle:

Nitrogen is the major component of earth's atmosphere. It enters the
food chain by means of nitrogen-fixing bacteria and algae in the soil.
This nitrogen which has been 'fixed' is now available for plants to
absorb. These types of bacteria form a symbiotic relationship with
legumes--these types of plants are very useful because the nitrogen fixation
enriches the soil and acts as a 'natural' fertilizer. The nitrogen-fixing
bacteria form nitrates out of the atmospheric nitrogen which can be taken up and dissolved in soil water by the roots of plants. Then, the nitrates are
incorporated by the plants to form proteins, which can then be spread through
the food chain. When organisms excrete wastes, nitrogen is released into
the environment. Also, whenever an organism dies, decomposers break down
the corpse into nitrogen in the form of ammonia. This nitrogen can then be
used again by nitrifying bacteria to fix nitrogen for the plants.
food chain by means of nitrogen-fixing bacteria and algae in the soil.
This nitrogen which has been 'fixed' is now available for plants to
absorb. These types of bacteria form a symbiotic relationship with
legumes--these types of plants are very useful because the nitrogen fixation
enriches the soil and acts as a 'natural' fertilizer. The nitrogen-fixing
bacteria form nitrates out of the atmospheric nitrogen which can be taken up and dissolved in soil water by the roots of plants. Then, the nitrates are
incorporated by the plants to form proteins, which can then be spread through
the food chain. When organisms excrete wastes, nitrogen is released into
the environment. Also, whenever an organism dies, decomposers break down
the corpse into nitrogen in the form of ammonia. This nitrogen can then be
used again by nitrifying bacteria to fix nitrogen for the plants.
Phosphorus Cycle:

In the prevailing temperature and pressure ranges, phosphorus occurs in
liquid or solid mineral forms. Considering this, it is naturally found in water,
rocks, sediments and soil. Recycling of phosphorus occurs within hydrosphere,
lithosphere and biosphere. To be more precise, the atmospheric compartment of the ecosystem is less profound in regulating the cycle, which is not so in other biogeochemical cycles, such as carbon cycle and nitrogen cycle. Speaking
about phosphorus cycle summary, the aquatic plants absorb inorganic phosphorus from water and bottom layer of the water body (in case of rooted plants). Land plants derive phosphorus from the soil and fertilizers that applied
externally. While absorption by plants, the inorganic phosphorus is converted
into organic forms. Both aquatic and terrestrial plants are eaten by herbivorous
fish, birds and animals, thus transferring organic phosphorus to the consumers
in the next trophic level. The carnivores receive phosphorus by consuming herbivores. When plants, fish, birds and other animals die, they get deposited in water bodies and soil. Under favorable environmental conditions, the dead organisms are decomposed by bacteria and other microbes, during which organic phosphorus is again converted into inorganic type. The inorganic phosphorus is then recycled to the water and soil. This is taken up by the
plants. Thus, the same steps of the cycle are repeated. No doubt, phosphorus remains in a particular ecosystem compartment for a longer period, but it recycles back to the environment. Thus, the percentage composition of phosphorus remain at a near constant value. Scientific studies have claimed that phosphorus cycle is the slowest of all the biogeochemical cycles.
liquid or solid mineral forms. Considering this, it is naturally found in water,
rocks, sediments and soil. Recycling of phosphorus occurs within hydrosphere,
lithosphere and biosphere. To be more precise, the atmospheric compartment of the ecosystem is less profound in regulating the cycle, which is not so in other biogeochemical cycles, such as carbon cycle and nitrogen cycle. Speaking
about phosphorus cycle summary, the aquatic plants absorb inorganic phosphorus from water and bottom layer of the water body (in case of rooted plants). Land plants derive phosphorus from the soil and fertilizers that applied
externally. While absorption by plants, the inorganic phosphorus is converted
into organic forms. Both aquatic and terrestrial plants are eaten by herbivorous
fish, birds and animals, thus transferring organic phosphorus to the consumers
in the next trophic level. The carnivores receive phosphorus by consuming herbivores. When plants, fish, birds and other animals die, they get deposited in water bodies and soil. Under favorable environmental conditions, the dead organisms are decomposed by bacteria and other microbes, during which organic phosphorus is again converted into inorganic type. The inorganic phosphorus is then recycled to the water and soil. This is taken up by the
plants. Thus, the same steps of the cycle are repeated. No doubt, phosphorus remains in a particular ecosystem compartment for a longer period, but it recycles back to the environment. Thus, the percentage composition of phosphorus remain at a near constant value. Scientific studies have claimed that phosphorus cycle is the slowest of all the biogeochemical cycles.