Answer:
the answer would be A hope it helps.
Explanation:
To test for side effects and rare effects (the bigger the sample size, the more likely that wired things may occur)
Answer: The two elements found in sand are silicone and oxygen.
Explanation:
Sand is a granular substance that contain different smaller pieces of rocks and minerals. It is formed fromm weathering of rocks or breakdown of larger particles of rock into smaller pieces. Silicon dioxide or silica is a compound found in sand and also glass. Silicon dioxide is the chemical formula of sand. Silicon dioxide is formed when silicone reacts with two molecules of oxygen to form silicon dioxide. The major elements in sand is silicone and oxygen.
The correct answer is B. carbon dioxide in the Earth's atmosphere
