A strong acid is a number between 0-6 on the pH scale and Bases are between 8-14 on the pH scale the difference is how much hydroxide each one has like coca-cola (acid) and backing soda (base)
Answer:
a)what is humus?
ans-the dead and decayed parts of plants and animals are called humus..
b)explain about plate tectonic theory.
ans- The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.
Answer:
US Canada and Mexico
Explanation:
(NAFTA) is a treaty entered into by the United States, Canada, and Mexico; it went into effect on January 1, 1994.
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.
Countries with anti-natalist policies are China, India, and Uzbekistan.
Explanation:
The countries can roughly be divided into having pro-natalist or anti-natalist policies. The decision as to which of these two policies is implement depends on the area available, population size, increase or decrease rates, and available resources. Some countries have been swinging between the two policies, setting one for a decade and than turning to the other for a decade, returning to the previous one, and again to the other one, like in the case of Iran.
Some countries that have anti-natalist policies are:
China has such policy for several decades now. Initially it was only one child per family that was allowed, and only few years ago it was allowed for two children by family. The reason for this was the rapid increase of the already huge population and the fear that it will lead to economic and social collapse on the long run. The same problem has been the case in India as well. Even though there are policies that are anti-natalist, the people don't seem to apply to them, though the birthrates have been steadily dropping recently due to the development and gradual increase of the standard of living. Uzbekistan, on the other hand, is castrating the women after they have two children. The reason for this is that the country doesn't have enough resources so they desperately are trying to not become overpopulated and collapse.
