Macadam roads were made out of compacted subgrade of crushed granite or greestone designed to support the load, covered by a surface of light stone to absorb wear and tear and shed water to the drainage ditches.
The answer would be D: all of the above
Answer:
stratigraphy
Explanation:
Stratigraphy is regarded as the oldest method or technique used in dating, but archaeologists still use this technique till the present day. This technique of dating is usually based on the principle of superposition, which is likened to making a layer cake; the lowest layers of the cake must be made before the upper layers. This is how stratigraphy works.
A psychology study on attachment concludes that children who are not looked after by their parents need to have an opportunity to form an attachment with someone else.
<h3>What is an attachment?</h3>
An attachment is essentially an emotional bond between tone person and another person.
It is a connection that helps to ensure closeness and feeling more secure when people are with another.
In conclusion, the psychological research found that children who are not looked after by their parents need to have an opportunity to form an attachment with someone else.
Read more about attachment
<em>brainly.com/question/978078</em>
