Tuesday 25 July 2017

Effects of pollution on nature

Pollution is anything that makes the earth dirty and unhealthy. Land, air, and water are all affected by pollution.
Pollution takes up space on our land. Many of the things people use every day come in packages, like food, games, school supplies, and electronics. These packages end up in large underground dumps called landfills. Landfills make land unhealthy for animals and people.
Pollution is in the air we breathe. Trucks, cars, and school buses leak smoky exhaust from their engines.
Water Pollution
Water gets polluted with cleaners, paints, and chemicals. All of the pollution must be removed from our water before we can drink it.

Air Pollution
Air pollutants are gases and particles in the atmosphere that harm organisms and affect climate. Air pollution, then, is the release of these particles and gases into the air. 

Noise Pollution
The noise pollution is defined as the unwanted sound which is released into the environment. It disturbs the human being and cause an adverse effect on the mental and psychological well being.

Thursday 6 July 2017

Volcanic eruption

A volcano is a vent or fissure in Earth's crust through which lava, ash, rock and gases erupt. A volcano is also a mountain formed by the accumulation of these eruptive products. Let's take a look at how volcanoes form:
Earth's crust is 40 to 250 miles (64 to 402 kilometers) thick.It is broken up into 14 major and 38 smaller pieces called tectonic plates. These plates float on a layer of magma — semi-liquid rock and dissolved gases. At the boundaries of these plates — where they move past, are pushed under, or move away from each other — magma, which is lighter than the surrounding solid rock, is often able to force its way up through cracks and fissures. Magma can explode from the vent, or it can flow out of the volcano like an overflowing cup. Magma that has erupted is called lava. 
Principal types of volcanoes

Cinder cone volcanoes
Cinder cone volcanoes are the most common type of volcanoCinder cone volcanoes are fairly small, generally only about 300 feet (91 meters) tall and not rising more than 1,200 feet (366 meters). They can build up over short periods of a few months or years.
Stratovolcanoes
Stratovolcanoes are also called composite volcanoes because they are built of layers of alternating lava flow, ash and blocks of unmelted stone. They are larger than cinder cones, rising up to 8,000 feet.Stratovolcanoes erupt with great violence. Pressure builds in the magma chamber as gases, under immense heat and pressure, are dissolved in the liquid rock. When the magma reaches the conduits the pressure is released and the gases explode, like soda spewing out of a soda can that you shook up and opened suddenly.Stratovolcanoes are considered the most violent eruptions.
 Shield volcanoes
 Shield volcanoes are huge, gently sloping volcanoes built of very thin lava spreading out in all directions from a central vent. The world’s largest volcano, Mauna Loa in Hawaii, is a shield volcano. Mauna Loa is about 55,770 feet.
Lava domes 
Lava domesare built up when the lava is too viscous to flow. A bubble or plug of cooling rock forms over a fissure. This cooler, thick lava usually rises near the end of an explosive eruption and lava domes often form within the craters of stratovolcanoes. 

Wednesday 5 July 2017

Effects of Nature

hands planting



Research disclosed that environments can increase or reduce our stress which in turn impacts our bodies. What you are seeing, hearing, experiencing at any moment is changing not only your mood, but how your nervous and immune systems are working.
The stress of an unpleasant environment can cause you to feel anxious, or sad, or helpless. This in turn elevates your blood pressure, heart rate, and muscle tension and suppresses your immune system. A pleasing environment reverses that.
Positive Effects
The Positive Effects of Nature on Your Well Being
Since the beginning of our existence, humans have been             interacting continuously with nature.People  forget that we are actually part of nature. We are animals that started existing in the same way that every other being did: in a natural ecosystem. 
Negative Effects
Natural disasters are responsible for the destruction of countless homes.

Natural Disasters are presented to us in various forms. Earthquakes, tsunamis, hurricanes, volcano eruptions and tornados have been the causes of many devastating events seen throughout history.