The answer is arms race. An example is the cold war era nuclear arms race between the United States and the Soviet Union. Today's superpowers such as China, Russia and United States are also engaged in an arms race for the most technologically advanced weaponry.
An iodine solution is placed on the cut side of a potato. With in seconds, a blue-black color appears thus showing "positive test for starches".
<u>Option:</u> B
<u>Explanation:</u>
Amylose in starch is accountable in the existence of iodine for production of a deep blue shade. Within the amylose coil the iodine molecule slips. Attach a solution or directly to a potato or other products such as pasta, crackers, or flour with Iodine-KI reagent. If starch is available a blue-black color results.
If starch amylose is not available then orange or yellow will remain the color. Variations in some inorganic reactions to the reduction of oxidation, iodine may be used as an indicator for following changes in iodide ion and iodine product. Soluble solvent is applied to the starch.
<h3><u>Answer;</u></h3>
Rock
<h3><u>Explanation;</u></h3>
- Rock is a naturally occurring solid mixture of one or more minerals or organic matter.
- Rock is a solid mixture of crystals of one or more minerals, or organic matter.
- Rocks are classified by how they are formed, their composition, and texture. Rock has been an important natural resource as long as humans have existed.
- The rock cycle is the series of processes in which a rock type changes from one type to another.
