Answer:
Alluvial diamond mining occurs in riverbeds and beaches, where thousands of years of erosion and natural forces such as wind, rain, and water currents wash diamonds from their primary deposits in kimberlite pipes to beaches and riverbeds. Some alluvial deposits are from long-ago rivers.
Answer:
Tell students that sometimes when two (or more) substances are mixed together, a change occurs and another substance (or substances) is created. This is called a chemical reaction. Gas may form, heat may be produced, and color may change. These types of changes indicate that a chemical reaction has occurred.
Answer:
Option B
Explanation:
From the question we are told that:
Equation
Bond enthalpies are:
Generally the equation for the energy used to break E-X and Y-Y is mathematically given by
Therefore
Total Energy Liberated is
Since
Therefore
Option B
Will refreact through the lens and diverge, never intersecting
