Hot and less dense material below the
Earth’s crust rises towards the mid-ocean ridge. A mid-ocean ridge is an underwater mountain range, formed by plate tectonics.
<span>As this material flows sideways, it
creates a crack in the crust where magma will flow out. This magma cools down
and becomes the new seafloor.</span>
Answer:
D. Lowering of the sea level.
Explanation:
- Stream incision is a cause and consequence of the increase in the river load carrying capacity and also its former floodplain if uplifted by the presence of mountain ranges and more discharge rates.
- As the streams channel drops the water in surrounding aquifers runs into the streams, thus lowering the water table a this modifies the flow pattern of the stream, and leads to large reductions of summer flows.
- The incision is thus a play of the river with its tools and speed of the river and the amount of discharge governs the flow patterns hense, this impacts the river way of cutting.
Answer:
A primary source is anything that gives you direct evidence about the people, events, or phenomena that you are researching. Primary sources will usually be the main objects of your analysis. If you are researching the past, you cannot directly access it yourself, so you need primary sources that were produced at the time by participants or witnesses (e.g. letters, photographs, newspapers).
A secondary source is anything that describes, interprets, evaluates, or analyzes information from primary sources. Common examples include: 1. Books, articles and documentaries that synthesize information on a topic 2. Synopses and descriptions of artistic works 3. Encyclopedias and textbooks that summarize information and ideas 4. Reviews and essays that evaluate or interpret something When you cite a secondary source, it’s usually not to analyze it directly.
Examples of sources that can be primary or secondary:
A secondary source can become a primary source depending on your research question. If the person, context, or technique that produced the source is the main focus of your research, it becomes a primary source.
To determine if something can be used as a primary or secondary source in your research, there are some simple questions you can ask yourself: 1. Does this source come from someone directly involved in the events I’m studying (primary) or from another researcher (secondary)? 2. Am I interested in analyzing the source itself (primary) or only using it for background information (secondary)?
Most research uses both primary and secondary sources. They complement each other to help you build a convincing argument. Primary sources are more credible as evidence, but secondary sources show how your work relates to existing research.
