Answer:
The true statement is d.
Explanation:
Nuclear fusion is the process in which two lighter nuclei are combined to form one heavy nucleus along with the huge amount of energy. This reaction takes place in the Sun.
The statement that is likely to occur in the future is new ethnicities will be formed, and old ethnicities will merge into one. The correct option is b.
<h3>What is ethnicity?</h3>
Ethnicity refers to a group's cultural identity, which is generally based on shared ancestry, language, and cultural traditions, whereas race refers to a taxonomic grouping based on physical similarities among groups.
The idea of race refers to the division of humans into groups based on diverse sets of physical features, as well as the process of assigning social significance to those categories.
Ethnicity describes a people's culture in a certain geographic area, encompassing their language, background, religion, and customs.
Therefore, the correct option is b, New ethnicities will be formed, and old ethnicities will merge into one.
To learn more about ethnicity, refer to the link:
brainly.com/question/12084761
#SPJ1
Answer: Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks and watches are at least an order of magnitude more accurate than mechanical clocks.
Explanation:
Given that a directional hypothesis is a prediction made by a researcher regarding a positive or negative change, relationship, or difference between two variables of a population, a two-tailed test is the perfect tool to validate it because a two-tailed test is designed to examine both sides of a specified data range.
So the final answer to this question is:
True.
