To me all of the questions except the last one is right
There are many ways to measure distance between Perth and Ireland.
First of all, you should know what kind of distance you want to measure: absolute or relative? this means wither it is in a straight line (which might not be suitable for actually doing it in terms of traveling), or relative, and you would be considering possible routes (boat, plane..).
Secondly, you must choose the point in Ireland.
You can use some online tools that help you with measuring distances. An example is:
https://www.freemaptools.com/how-far-is-it-between-Belfast_Northern-Ireland-and-Perth_Australia.htm
You can then change the cities.
Hope this helps.
Answer:
c. fossils
Explanation:
Fossils are the remains of dead and decayed organisms that are preserved in rocks. Fossils can be preserved using their hard parts, or the products of their activities can remain still for several years.
Fossil are used for relative age dating of rocks. According to the principle of fossil and fauna succession, it is scientifically correct to correlate areas with the same fossil record because fossils succeed on another in a definite order. All rocks that exists in that time period will contain the organisms that lived during that period in time.
Answer:
c. Lack of food sources
Explanation:
The groundwater has been used more and more around the world. There are large reserves of it, but in the past few decades the groundwater reserves have constantly been going down. The main reason for this is the lack of food sources. Because the global population is constantly on the rise, more and more food is needed, and in order to produce it, more and more farmlands are created. The increased number of farmlands means that more water is needed for irrigation, thus the groundwater reserves are the ones that suffer the most.
