Answer:
the answer is b: to explain how light travels
Explanation:
Answer:
English may not be spoken language in the worlds, but it is an official language in a large number of countries. It also very important for whom works in global workforce because English is the language of business in world, so it had become necessary for people to speak English.
Answer:
Credibility of documents
comprises the objective and subjective components of the believability of a source or message.
Explanation:
Credibility has two key components: trustworthiness and expertise, which both have objective and subjective components. Trustworthiness is based more on subjective factors, but can include objective measurements such as established reliability. Expertise can be similarly subjectively perceived, but also includes relatively objective characteristics of the source or message (e.g., credentials, certification or information quality).
The correct answer is A. Bar graph
Explanation:
Bar graphs include two axes one vertical axis (y) and one horizontal axis (x). Besides this, variables in this graph are represented using bars of different height or length according to the variables represented. Additionally, bar graphs are mostly used to show comparisons in a group or changes over time as multiple bars allow readers to understand visually tendencies or changes over months, years, decades, etc. usually by using the X-axis to represent time and Y-axis to represent the other variable.
According to this, in the case presented the most appropriate is a bar graph because this is suitable for showing the growth in a specific population (people aged 65 or more) especially as this evolves over time (1950- 2010) by using bars that represent the differences or changes over the years.
