It is the chemical properties of a substance, which determines that how the substance will react when combined with other substance.
The usual properties of a substance like density, color, and hardness are some of the illustrations of physical properties. The properties, which illustrates that how a substance modifies into a completely distinct substance are known as chemical properties.
Some of the examples of chemical properties are oxidation, toxicity, the heat of combustion, and flammability, enthalpy of formation, radioactivity, and chemical stability under particular conditions.
The meaning of the term photosynthesis is the process by which green plants manufacture their food (sugar) through the use of inorganic substances and sunlight as a source of energy.
Before photosynthesis takes place in a green plant, there must be presence of inorganic substances such as:
- water
- carbondioxide and
- sunlight (energy source).
The energy from sunlight is captured by the pigment called chlorophyll which is present only in green plants.
The products of photosynthesis is simple sugars with the giving off of oxygen as a by-product.
Therefore, photosynthesis is the process by which green plants manufacture their food (sugar) through the use of inorganic substances and sunlight as a source of energy.
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Answer:
because of lack of vaccination
Explanation:
this occur mostly in Nigeria
The era of Enlightenment was characterized by:
- Governments exist to serve the people.
- The social contract allows for consent of the governed.
- The divine right of kings to rule with absolute power is a violation of the social contract.
- Governments that break the social contract must be overthrown.
- All citizens are born with natural rights to life, liberty, and property.
- Use of reason can solve government problems.
<h3>What is an era?</h3>
An era is a time period which is characterized by a certain event or occurrence.
An era is defined by certain way of life or culture both written and spoken.
Some of the various eras of human existence are:
- Middle Ages
- Scientific Revolution
- Enlightenment
- Era of Good Feelings
In conclusion, the various eras of human existence have various characteristics.
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<span>The climate and the situation of the country or city that they live in.</span>
