Pollution
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Water evaporates from bodies of water and rises into the atmosphere with heat. As the warm air cools and expands higher in the sky, the water vapor condenses into droplets which grow larger. When the droplets become too heavy, they fall to the ground as rain, snow, sleet or hail. Air pollution occurs when fossil fuels are burned, releasing nitrogen and sulfur oxides into the atmosphere. These gases can dissolve into acid rain and particles can reduce visibility and impact health. Water covers most of the earth but is found in oceans, ice caps, snow, and underground. Many areas face water shortages in summer and rural populations must travel long distances to collect water. Water availability determines what species can survive in an area
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The document summarizes key information about air and air pollution. It discusses how air is composed of nitrogen, oxygen, carbon dioxide and other gases. It also explains the roles of photosynthesis and respiration in maintaining gas balances. The document outlines how convection currents cause winds and air movement. It describes how water evaporates to form clouds and rain. Finally, it discusses both natural and man-made sources of air pollution and their harmful health and environmental effects such as acid rain, global warming, and damage to the ozone layer.
Global Water Cycle in Hawaii
The document discusses the global water cycle, explaining that water is essential for life and circulates around the Earth in a continuous process. It describes the major components of the water cycle, including evaporation, transpiration, condensation, precipitation, infiltration, and collection. The water cycle is driven by energy from the sun, which causes water to evaporate from oceans, lakes, and other bodies of water before condensing in clouds and falling as precipitation only to be collected and start the cycle again.
ResourcesPowerpointPresentation_20231129_064608_0000.pdf
Resources:
Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified according to their availability — they are categorized into renewable and non-renewable resources. They can also be classified as actual and potential based on the level of development and use; based on origin they can be classified as biotic and abiotic, and based on their distribution, as ubiquitous and localised (private, community-owned, national and international resources). An item may become a resource with time and development of technology. The benefits of resource utilization may include increased wealth, proper functioning of a system, or enhanced well-being. From a human perspective, a natural resource is anything obtained from the environment to satisfy human needs and wants.[1] From a broader biological or ecological perspective, a resource satisfies the needs of a living organism (see biological resource).
Air,water and weather
The document discusses the composition of air and the water cycle. It begins by explaining that air contains water vapor and important gases like oxygen and carbon dioxide. It then goes into detail about the water cycle, describing how water evaporates into the air and condenses back into water droplets, forming clouds and precipitation in a continuous cycle. It also explains that air can contain dust particles and germs, so we should wash our hands before eating.
COMPRE-DECK- FAGARANG, AMER.pptx
Clouds form when water vapor condenses into liquid water or ice particles in the atmosphere. Tiny water droplets or ice crystals make up clouds and are suspended due to temperature and humidity conditions. Clouds require condensation nuclei like dust or salt particles for water vapor to condense around and form cloud droplets. The composition and type of cloud depends on factors like temperature, humidity, and whether droplets or ice crystals make up the cloud.
13.air water and weather
The document discusses air, water, weather, and seasons. It explains that air contains oxygen, carbon dioxide and water vapor. Water exists in three forms - liquid, solid (ice) and gas (water vapor) and goes through the water cycle of evaporation and condensation. Weather is defined as the daily conditions like temperature, wind and precipitation. Weather changes with the seasons - summer is hottest, winter coldest, and monsoon brings rain.
water cycle demo.pptx
The document summarizes the water cycle, which refers to the continuous movement of water on, above, and below the Earth's surface. It involves processes such as evaporation, transpiration, condensation, precipitation, infiltration, and surface runoff. Water can change between liquid, gas and vapor states as it moves through the atmosphere and lithosphere via these processes, which are driven by heat from the sun and the Earth. The water cycle is essential for life on Earth and regulating its temperature but can be impacted by climate change and human activities.
How are Clouds Formed ?
Clouds form through the evaporation and condensation cycle of water in the atmosphere. Water evaporates from surfaces and rises into cooler air, where it condenses into droplets around particles like dust to form clouds. Clouds on Earth are mainly water but can contain more acid from pollution, causing acid rain. The clouds on Venus are made of nitric acid and carbon dioxide which never rain due to low temperatures, enveloping the planet.
Acid rain
Acid rain is caused by sulfur and nitrogen oxides emitted from fossil fuel combustion reacting with water, oxygen and other chemicals in the atmosphere to form acids. It falls as rain, snow or dry deposition and harms aquatic ecosystems, forests and infrastructure. Effects include acidified lakes and streams unable to support aquatic life, weakened trees more vulnerable to disease and insects, and accelerated deterioration of buildings and monuments. Reduction efforts include installing pollution controls on power plants and vehicles to reduce sulfur dioxide and nitrogen oxide emissions and transitioning to alternative energy sources.
WATER CYCLE
The water cycle consists of evaporation, transpiration, condensation, precipitation, and runoff. Evaporation occurs when water is heated by the sun and changes from a liquid to a gas. Transpiration is when water vapor is released from plants. Condensation happens when water vapor in the atmosphere cools and changes back to a liquid, forming clouds. Precipitation describes when this condensed water falls back to Earth as rain, snow, or hail. Runoff then transports this water across land through streams, rivers, and other pathways. Human activities like deforestation, urbanization, and agriculture can impact the water cycle by changing infiltration, runoff, and groundwater levels.
Science
The document discusses how water and air affect weather. It describes 4 key processes:
1. Evaporation and condensation - how water moves from liquid to gas and back in the atmosphere.
2. Precipitation - when water vapor condenses and falls as rain, snow, or other forms due to saturation.
3. Storage - water is stored in places like oceans, icebergs, and lakes throughout the water cycle.
4. Factors like temperature, water vapor, and elevation affect air pressure and pressure differences, which in turn impact weather patterns like sea breezes and land breezes as the land and ocean heat up differently.
Acid rain
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Geography presentation
The document discusses water resources and the hydrological cycle. It begins by defining the hydrological cycle and discussing its major processes. It then explains that water exists in three forms - solid, liquid, and gas - due to climatic variations. Water is essential for life but must be preserved and used carefully. The document further analyzes the hydrological cycle and how water circulates between the oceans, atmosphere, and land in vapor, liquid, and solid forms. It also notes that while water is abundant globally, freshwater availability does not always meet demand.
Watercycle PowerPoint
The document summarizes the key components of the water cycle: the sun provides energy to evaporate water which rises into clouds through condensation and falls as precipitation, collecting in bodies of water where it repeats the cycle by evaporating again under the sun's energy. Evaporation, condensation, precipitation, and collection are important stages that allow the cycle to continuously circulate water around the planet.
Water and air
Water exists in three states: solid, liquid, and gas. It moves through a cycle in nature between these states, driven by heat from the sun. Water evaporates from seas and other bodies of water into vapor in the air, condenses to form clouds, and falls back to the ground as precipitation like rain or snow to collect again in rivers and seas. All living things rely on water, with people and other animals depending on fresh water sources like rivers, lakes, and groundwater for survival.
Water cycle
The document discusses the water cycle, where water is constantly circulating around Earth in different forms. It explains that water evaporates from the surface into the air, condenses to form clouds, and falls back to Earth as precipitation like rain or snow. Most water is stored in oceans, but some is stored in groundwater, lakes, streams, and other bodies of water before starting to evaporate again.
Water cycle final
The water cycle has four main stages: evaporation, condensation, precipitation, and accumulation. Evaporation occurs when sun heats water, turning it into vapor or steam which rises into the air. During condensation, water vapor cools and condenses into liquid water droplets forming clouds. Precipitation occurs when clouds become too heavy, causing water to fall as rain, snow, hail or sleet. Accumulation is when precipitation collects on the ground or in bodies of water, completing the cycle.
Water cycle final
The water cycle has four main stages: evaporation, condensation, precipitation, and accumulation. Evaporation occurs when sun heats water, turning it into vapor or steam which enters the air. Condensation is the opposite process where water vapor in the atmosphere cools and condenses into liquid water droplets to form clouds. Precipitation occurs when water in clouds becomes too heavy and falls to earth as rain, snow, sleet or hail. Accumulation is when precipitation collects on land or in bodies of water, completing the cycle.
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