Humans need a digestive system to do cellular respiration, which produces energy used for growth and movement.
Plants do not need one as they make their own energy through photosynthesis. The process produces glucose, which is a form of energy for the plants.
The answer would be the Scientific Method.
Answer: Science is involved in cooking, eating, breathing, driving, playing, etc. The fabric we wear, the brush and paste we use, the shampoo, the talcum powder, the oil we apply, everything is the consequence of advancement of science. Life is unimaginable without all this, as it has become a necessity.
Explanation:
<span>Destructive Interference. This gives the effect of making the two waves disappear at the moment they meet. After the 2 waves cancel each other at the monent when they overlap, the waves continue in the same direction and magnitude as they were originally.</span>
The mass has changed because a gas has formed and left the mixture.
Answer: Option A
<u>Explanation:
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According to law of conservation of masses which is followed by every chemical reaction, the sum of masses of the reactants equal to the sum of the masses of the products. But in this case of baking soda of 10 g reacting with 100 g of vinegar is giving a resulting mixture of 105 g.
So, this mismatch in the resultant mass of the product with the sum of masses of the reactants is due to the formation of bubbles in the chemical reaction between baking soda and vinegar. This gas bubbles formed on reaction of vinegar with baking soda will leave the mixture.
As we known from conservation of mass, the resultant mixture should be equal to the sum of mass of vinegar and baking soda reacted which would have been equal to 110 g ( baking soda 10 g +100 g of vinegar). But we have obtained only 105 g of resultant mixture so the remaining 5 g has been converted into gas and left the mixture.
