Hi!
The answer would be three days a week
Bone-strengthening activity is key to ensuring that bones remain healthy to maintain an individual's lifestyle. The physical activity to strengthen bone may be brisk walking, exercises that include weights, or gymnastics to lift a few. The purpose of these activities are to observed to contribute to an increase in the bone mineral density of adolescents and children. Several studies have established that about 150 minutes a week for adults, or 3 days a week (60 minutes a day) for the youth should be devoted to bone strengthening physical activity to ensure good health of the body.
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Answer:
three or more days a week
Explanation:
The top of the wavelength is called the crest.
-- The arrow in the picture is pointing to a crest of the wave ... one of the peaks.
-- The amplitude of the wave is the vertical distance between one of the crests and the light horizontal line across the middle.
-- The wavelength is the horizontal distance between two crests.
-- Do you know what a 'trough' is ? Well first of all, when you read the word, it looks like you should pronounce it like "trow", but the correct pronunciation is "trawf". (Just like when you have something stuck in your throat, and you cough ... you don't "cow", you "cawf".)
In an old cowboy movie, do you remember the big, open water tanks they used to have along the side of the street in front of the saloon, for horses to drink from while they were tied up to the hitchin post ? THAT tank was called a "watering trough". The bottom of a wave, where the wave could hold water, is the trough of the wave. It's an upside-down crest.
B. Both physical and chemical changes occur when you make pizza from scratch.
C. Only chemical changes occur when you cook a frozen pizza and only physical changes occur when you make pizza from scratch.
D. You cause chemical changes in vegetables by cutting them into small pieces
Both physical and chemical changes occur when you make pizza from scratch.
The correct statement from the given options is: Both physical and chemical changes occur when you make pizza from scratch. When you make pizza from scratch, physical changes occur when you mix and shape the ingredients, while chemical changes occur during the process of baking the pizza dough and melting the cheese. These changes involve the breaking and forming of chemical bonds, resulting in the creation of new substances with different properties.
Additionally, cheese undergoes a chemical change as it melts, proteins denature, and Maillard reactions occur, resulting in the development of new flavors and textures.
Thus, making pizza from scratch is a dynamic process that encompasses both physical and chemical changes, highlighting the fascinating chemistry and physics behind this delicious culinary endeavor.
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