Infectious diseases are caused by pathogenic microorganisms (like bacteria, viruses, fungi, or parasites) and…

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Infectious diseases are caused by pathogenic microorganisms (like bacteria, viruses, fungi, or parasites) and can be transmitted from one person to another, from animals to humans, or through

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Infectious diseases are caused by pathogenic microorganisms (like bacteria, viruses, fungi, or parasites) and can be transmitted from one person to another, from animals to humans, or through the environment. * Example: Malaria (caused by a parasite) or Influenza (caused by a virus). Non-infectious diseases are not caused by pathogens and cannot be transmitted from one person to another. They often result from a combination of genetic, lifestyle, and environmental factors. * Example: Diabetes or Heart disease.
Substance abuse is the harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs. It is a pattern of drug use that leads to significant problems or distress, such as failure to meet obligations at work, home, or school, or use in physically hazardous situations.

*   **Stimulants:** These are drugs that **increase** activity in the central nervous system, leading to increased alertness, energy, and attention.

    *   **Examples:** **Caffeine**, **Nicotine**, **Amphetamines**, **Cocaine**.
*   **Depressants:** These are drugs that **decrease** activity in the central nervous system, leading to relaxation, reduced anxiety, and drowsiness.
    *   **Examples:** **Alcohol**, **Opioids** (e.g., heroin, morphine), **Benzodiazepines** (e.g., Valium, Xanax).

15. To calculate the Body Mass Index (BMI), we use the formula: $\text{BMI} = \frac{\text{mass (kg)}}{\text{height (m)}^2}$

Substitute the given values into the formula.
$$ \text{BMI} = \frac{90\,\text{kg}}{(1.75\,\text{m})^2} $$

Calculate the square of the height.

$$
\text{BMI} = \frac{90\,\text{kg}}{3.0625\,\text{m}^2}
$$

Perform the division to find the BMI.
$$ \text{BMI} \approx 29.3877 $$

Round the BMI to one decimal place.

$$
\text{BMI} \approx 29.4
$$

The calculated BMI is approximately 29.4.

Based on standard BMI classifications:
*   Underweight: $< 18.5$
*   Normal weight: $18.5 - 24.9$
*   Overweight: $25.0 - 29.9$
*   Obese: $\ge 30.0$

The person's BMI of 29.4 falls within the **overweight** category, not obese. Therefore, the person is **not likely to be obese**.

*   **BMI:** $\boxed{\text{29.4}}$
*   **Likely to be obese?** ❌ **No.**
*   **Why?** The calculated BMI of 29.4 falls into the **overweight** category ($25.0 - 29.9$), which is below the threshold for obesity ($\ge 30.0$).

Infectious diseases are caused by pathogenic microorganisms (like bacteria, viruses, fungi, or parasites) and can be transmitted from one person to another, from animals to humans, or through

Step-by-step solution

Substitute the given values into the formula.

Calculate the square of the height.

Perform the division to find the BMI.

Round the BMI to one decimal place.

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