Precambrian rocks<span> are mostly covered by rock systems of more recent origin, but where visible they commonly display evidence of having been altered by intense </span>metamorphism<span>. Precambrian rocks often occur in shields, which are large areas of relatively low elevation that form parts of continental masses.</span>
Answer:
Canada.
Explanation:
I used to live in Canada! It gets <u>very</u> cold in the winter. Canada is much further north than the USA, with the exception of Alaska, and this makes it much colder in the winter. In the summer, it's pretty mild, which is nice.
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Learned behavior
This is because instinct drives them to eat and find food, but they have to learn that a certain feeder is always out and available
Answer:
1. Participants are randomly assigned to intervention or control
Explanation:
Quasi-experimental study -
It is the study to estimate the impact of an intervention on the target population with any random assignment .
This Quasi-experimental research shares , the similarities with the randomized controlled trial or the traditional experimental design .
But in this study , there is random assignment for the control or treatment .
Hence , from the options given in the question , the correct is ( 1 ) .