Answer:
Track and field is oldest
Explanation:
Track and field was first invented in 776 BC.
If the patient doesn't get good care the ratings go down and some insurance won't pay claim
Answer:
Environment
Explanation:
In a research study, internal validity refers to how well an experiment was carried out and to what extent the piece of evidence supports a claim.
The lesser the chance of confounding in a study the higher the internal validity.
Study of memory is possible through learning the electrical activity created by neurons.
Therefore, thunderstorm will affect the readings hence it is an Environmental threat to the internal validity.
<span>Hi
Hiv can be transmitted through shaking hands, hugging or kissing.
- false</span>
