Explanation:
1. they are convenient to use 2. it helps the international tade 3. it eases the exchange of material
Explanation:
When using chromatography, the 2 solutes in the solvent paper should have different Rf values from the base line to identify them as different compounds.
If they were to have the same speed in the solvent, they would appear as 1 dot instead of 2 separate dots, which is a false reading.
Answer: The primary function of leaves is to collect sunlight, for use in photosynthesis.
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The answer would be false because Proprioceptive neuromuscular facilitation is a mode of stretching that uses reflexes and neuromuscular principles to relax the muscles being stretched while ballistic stretching is exercise <span>conducted with jolting, rapid, and bouncy movements.</span>
Answer: The reason why pestisides are found in our water is because the government and farmers put some type of chemical on the plants and in the water so animals like worms or bugs dont drink or eat our food and water supply.
