Explanation

• The freezing point of water is 0°C (zero degrees Centigrade). 
• The boiling point of water is 100°C (one hundred degrees Centigrade).

Explanation

Vitamin K is found in:

• Leafy green vegetables (like spinach, kale, and broccoli)
• Cruciferous vegetables (like cauliflower, cabbage, and Brussels sprouts)
• Fermented foods (like sauerkraut and kimchi)
• Some fruits (like blueberries, strawberries, and pineapple)

Explanation

Minerals such as Potassium, Fiber, Iron, and Selenium are found in fruits, vegetables, grains, and seafood.

Explanation

• Both animal and plant bodies contain a significant percentage of water.
• 70% is a commonly cited estimate for many living organisms.

Explanation

• During Summer in the Northern Hemisphere, the days become longer and the nights become shorter due to the Earth's axis being tilted towards the Sun.
• This results in more direct sunlight and longer periods of daylight.

Explanation

• An open circuit is an electrical circuit that is broken or disconnected, and electricity cannot flow.
• When the wire is disconnected, the circuit is open, and the bulb is off.

Explanation

• Solids like salt (sodium chloride) dissolve in water to form a saltwater mixture or solution.
• When salt is added to water, the salt particles break apart and distribute evenly throughout the water, creating a homogeneous mixture.

Explanation

Teeth perform two main functions:

• Chewing (breaking down food into smaller pieces).
• Grinding (crushing and pulverizing food).

Explanation

Primary teeth are also known as:

• Baby teeth
• Milky teeth
• Deciduous teeth

Explanation

Air is not a component of a food web, as it is not a living organism or a source of energy or nutrients for organisms in the web.