Explanation:
The factors that affects the rate of chemical reactions are;
- Nature of reactants
- Concentration of reactants or pressure
- Temperature
- Presence of catalyst
- Sunlight
In our body, the nature of reactants is very important. A food substance in solid form undergoes slow digestive process because it has little surface area exposure for the action of digestive chemicals. Most solid food are usually chewed in the mouth before digesting them to increase their surface area.
The increasing order of food digestion is;
lumps to granules to powder and to liquids.
Answer: "root hairs" .
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"In roots, <u> root hairs </u> increase the surface area through which water and materials can diverse."
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density and specific gravity are properties used to help identify minerals. Density is a measure of the mass of a certain volume of the sample. Specific gravity is a unit less measure, and it is the ratio of the mass of a substance to the mass of an equal volume of water. density and specific gravity are properties used to help identify minerals. Density is a measure of the mass of a certain volume of the sample. Specific gravity is a unit less measure, and it is the ratio of the mass of a substance to the mass of an equal volume of water.
Answer:
When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.
Explanation:
