Cold air is dense and warmer air is less dense and so as the cool dense air sinks the warm air rises and takes its place causing a convection current. This is the same with water and other gaseous and liquid substances.
The troposphere is the layer closest to Earth’s surface
Lake Winnipeg is a large lake southwest of Hudson Bay
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Economic activities and trade patterns influence a country's level of development. Modern industrial societies, such as France, the US and Japan are said to be developed countries. Countries with lower levels of prosperity and underdeveloped.
Explanation:
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Answer:
Pollutants are responsible for creating an imbalance of the substances that leads to a negative impact in a particular part of the earth like air, water, soil, noise, and more.
Primary pollutants are the pollutants that are directly generated from their sources such as activities by humans like air and water pollutants from the car, from ships, that affects the organs of humans like lungs, eyes, stomach and reduces our immune system and our life. Indirectly affect us. In the environment, they increase toxic substances in high amounts that cause various negative impacts.
Secondary pollutants form due to the reacting of primary pollutants and natural resources. Acid rain is an example of the secondary pollutant result which is formed due to dissolved sulphuric acid in rainwater. It also affects the skin of humans and affects the environment by increasing acidity to soil and water.
