Very light, thin lines that separate the colored areas or rock units on a geologic map are called contact lines. The place where two different geologic units are found next to each other is called a contact, and that is represented by different kinds of lines.<span>
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Answer:
Calcium becomes an ion with a charge of 2+
Oxygen becomes an ion with a charge of -2
Explanation:
since calcium lost two electrons, it has 20protrons, but only 18 electrons. this makes calcium a positive ion with a charge of 2+
An oxygen molecule consists of two oxygen atoms that have a double bond between each other and share valence electrons. the oxygen ion is formed when the atom of oxygen gains two valence electrons. this results in an oxygen ion with a charge of -2
The answer is cold Front!!
Answer:
The first 2 weeks of development is the germinal period. The germinal period begins with conception and ends when the blastocyst is fully placed into uterine tissue. Next, the embryonic period lasts from implantation until about 8 weeks from the time of conception.
Explanation:
The third thru the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.
The influence of Christianity
Tattoo is a permanent mark or
design made on the body by inserting pigment through ruptures in the skin. Decoration
is the most common motive for tattooing. In Polynesia, tattooing was a cultural
practice that transcended time and space but overtime, tattooing gradually lost
its importance in the cultural routine of the Polynesian people as the Christian
missionaries forcibly paved the way for a relinquishing of ancient customs in
many regions thereby eradicating tattooing in Polynesia.