Answer: 16.7%
Explanation: Children and adolescents (ages 6 to 17 years) engage in 60 minutes or more of moderate-to-vigorous physical activity daily as described by the CDC in The Physical Activity Guidelines for Americans (second edition).
However, elementary and high schools usually run from 8 a.m to 3 pm (or 3.30pm in some cases) daily. High school students take six one-hour classes or four 90-minute classes and an hour lunch break daily.
Thus, the CDC recommends 60minutes of physical activities daily, which account to 16.7% of the total class duration (6 hours) per day.
Answer:
The correct answer is - gender constancy.
Explanation:
Gender constancy is the sense of knowing that the gender does not change regardless the changes in appearance or traits. It was a theory that is drived from the studies of the Lawrence Kohlberg, an American psychologist.
According to him the children develop a sense of their being male or female over time and awareness that it is permanent and fixed. Gender constancy can be develop in between the age of two to seven.
Thus, the correct answer is - gender constancy.
Answer:
Photosynthesis relies on sun, water, and CO2 for it to make food. When there are lower levels of either, the organism carrying out photosynthesis can't make as much glucose and oxygen. This in turn harms the organism.
