Answer:
1. c. ore, 2. ore minerals or economic minerals
Explanation:
- An ore is a naturally occurring rock that contains sufficient minerals and important elements and typically metals. Ore metals are naturally found in the crust of the earth like the oxides of sulfur and silicate. Formed by a variety of geologic processes.
- <u>Crystals are a solid material thus have a fairly well-defined composition in the rocks and hence valued as a useful element by forming the internal structure of the mineral.</u>
Answer:
Secondary analysis
Explanation:
Lydia is re-analysing already collected data by other researchers, which is referred to as secondary analysis method.
Secondary analysis is the re-analysis of either qualitative or quantitative data already collected in a previous study, by a different researcher normally wishing to address a new research question.
Answer : They Do Move
Explanation : They settle into layers based mostly on their molecular weights. However, the Earth's atmosphere is much more expansive than a wine bottle. CO2 does not break down until about 80 kilometers from the Earth's surface, giving atmospheric gases a huge expanse to occupy.
Answer:
When there is a mistake in the copying of the genetic message that is permanent, a mutation has occurred. Two of the bases in DNA (Cytosine and Thymine) are the most vulnerable, and when this happens, they may pair with each other or themselves and the message is changed.
Explanation:
hope this helps you
B. Solar flares
The auroras are caused by space dust particles reflecting and mixing with earth’s atmosphere