Science MCQs

The metal becomes very hot and can cause severe burns if touched directly with skin.

Without preservatives like sugar or lemon juice microorganisms like mold and bacteria will grow rapidly in the nutrient-rich fruit causing spoilage.

Water drips directly to the roots minimizing loss through evaporation from the soil surface and runoff.

The final step is pouring the prepared brine over the blanched onions placed in the jar.

Alcohol is very drying to the skin. Aloe vera gel has moisturizing properties to help prevent skin irritation.

Fine hollow plastic tubes are used because they are flexible easily available and effectively transmit sound.

Making a stethoscope represents the application of simple technology for health monitoring purposes.

Boiling in their own juice helps to soften the tough lemon rind and mellow their sharp bitter flavor.

This period allows the acids sugar and spices to meld and for the preservation process to fully take place before refrigeration.

Stethoscope is a medical device and not used in drip irrigation systems.