The right option is; D Luster
If a mineral has a metallic shine to it, the luster of the mineral is being measured.
Luster is the property of a mineral which describes how the mineral reflects light, and also the dullness or brightness of the mineral. Luster is grouped into two which are; metallic and non-metallic. Minerals with a metallic luster are reflective and opaque. An example is pyrite. Non-metallic luster are also classified into groups based on how much light is reflected. The groups include pearly, dull, waxy, resinous, silky, and vitreous luster.
Decomposers<span> get </span>nutrients<span> and energy by </span>breaking down dead organisms<span> and animal wastes. </span>Through<span> this process, </span>decomposers<span> release</span>nutrients<span>, such as carbon and nitrogen, back into the environment. These </span>nutrients<span>are </span>recycled<span> back into the </span>ecosystem<span> so that the </span>producers<span> can use them.</span>
The preoperational stage is one of the many stages of a child's development. Piaget states that the most obvious change during the preoperational stage is the increase in a child's use language as a symbol or tool for communication. Though they can use language as symbols, they are still not able to form logic or transform ideas into understandable information.
Answer:
To determine that electric beams in cathode ray tubes were actually made of particles
Explanation:
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