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A substance that undergoes change in a chemical reaction is called a reactant. Reactants are the starting materials in a chemical reaction that are transformed into products through the rearrangement of atoms.
Chemical weathering is the type of weathering that causes the mineral composition of rocks to change. This process occurs when minerals in rocks react with elements in the environment, causing a chemical reaction that alters the rock's mineral composition over time.
Yes, roasting marshmallows is a chemical reaction. When marshmallows are subjected to heat during roasting, the sugars and proteins they contain undergo a chemical reaction called Maillard browning. This reaction causes the marshmallows to change color, texture, and flavor.
A change or signal in the environment that can make an organism react is called a stimulus. Organisms have evolved to react to different types of stimuli such as light, temperature, chemicals, sound, or touch in order to survive and thrive in their specific ecosystems. The reaction to a stimulus can be a behavior, physiological response, or even a change in developmental processes.
Causes of a bad environment can include pollution from various sources such as industrial activities, vehicle emissions, improper waste disposal, deforestation, and climate change. Overconsumption of natural resources, habitat destruction, and lack of environmental regulations can also contribute to a degraded environment.
stimulus
A change in an organism's environment that causes it to react is called a stimulus. Stimuli can be physical, chemical, or biological factors that trigger a response in an organism to help it adapt and survive in its environment.
Certain chemicals and radiation in the environment can cause a reaction or mutation in an organism. Such changes may alter organisms genotype or phenotype. Chemicals that induce changes in organisms DNA is called mutagens.
stimulus
Adaptation.
stimulus
stimulus
Stimuli are things in the environment that cause change. A reaction to a change in the environment is a reaction to a stimulus.
stimulus
reflex
Yes, corroding metal is a chemical change because it involves a chemical reaction between the metal and substances in its environment, such as oxygen or water. This reaction causes a change in the composition and properties of the metal.
A catalyst