Answer:
A. In undisturbed rock layers, the youngest rocks are on the bottom.
C. If one rock contains pieces of another, the rock containing the pieces is older than the pieces.
Explanation:
Relative dating is a form of dating rocks in which past events in geologic records are put their proper order without necessarily knowing their absolute ages. There are several principles that helps in relative dating of rocks. These principles are:
- Principle of superposition of strata
- Law of original horizontality
- Principle of lateral continuity
- Principle of inclusion
- Principle of fossil and fauna succession
Option A and C are false statements of principle of superpositon of strata and principle of inclusion.
A. In undisturbed rock layers, the youngest rocks are on the bottom.
According to the principle of superpositon of strata, "the oldest sedimentary rock layers are usually at the bottom and the youngest on the top".
C. If one rock contains pieces of another, the rock containing the pieces is older than the pieces.
This is a false statement of principle of inclusion, the principle states that "inclusions found in a sedimentary rock are older than the rocks that contains them". Inclusions are fragments or pieces of other rocks that are found in a rock. These inclusion are believed to be older than the rocks they are found in.
Some possible ways include:
Improving the medical care available to expectant mothers before, during, and after childbirth.
More resources, such as food, clean water, and other necessary supplies being given to both the mothers and their families.
Vaccines and other disease-preventing methods being used to protect both the mother and the child.
The first and the last ones sort of go together, but they should still work as separate points. Hope this helped!
Colonialism hindered a LEDCs level of development. A colony helped supply food and minerals to countries like Britain and France. ... In many cases gold, diamonds and other valuable resources were taken back to the home countries leaving the colony with little material wealth.
Naval Bases and Refueling stations. Hope that helped :)
