The type of soil varies from place to place on our planet and can even vary from one place to another in your own backyard. Soil erosion, caused by wind and rain, can change land by wearing down mountains, creating valleys, making rivers appear and disappear.
Answer:
controlled variable
Explanation: i know this bc i just got it wrong lol
<span>Colloid cloudy and cannot be separated into oil and water by filtration or centrifuge. On the basis of collagen in Gelatin, it could be one type of colloid. Butter is an example of colloid. Colloids have bigger particles than Suspensions, its emulsion basically.</span>
Explanation:
Radioactive dating works on the principle that a radioactive isotope can decay into the stable daughter nuclei at a constant rate. Geologist generally use the principle for half life. Half life is the time required for half of the radioactive substance to decay. This is constant for a particular element.
