D !! A,B, and C isn’t the intent to hurt or kill someone
Circulatory disorders can affect a personal lifestyle as it can be difficult to exercise. It can also led to mental health problems such as depression and anxiety since circulatory disorders can lead to emotional distress.
Answer: Social media ad that has physical activity (for apex)
Explanation:
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.