Answer:
Option (C)
Explanation:
Charts and graphs are the most common features that are used in order to show and highlight data in a preferred and simple way. It helps in a clear understanding of any topic, as the charts are comprised of figures and graphs show the relationship between two things. It provides accurate and valuable information. These are also considered to be a simple, meaningful and attractive design and are widely used during the presentation of any topic.
These graphs and charts are made using different colors, and the number of colors are not fixed. It has a wide range of colors.
Thus, the correct answer is option (C).
Answer:yes
Explanation: cuz we’ve got super Boris Johnson
Answer: it reaches 50 feet :)
Explanation:
30+20=50
A radioactive element with a half-life of 1,000 years, and starting mass of 20 grams, will need 2,000 years to decrease to 5 grams.
Explanation:
The radioactive elements all have a specific half-life. Each element's half-life is well known, and they are used by scientists of numerous fields as they are excellent for determining the age of a particular item, be it or organic or non-organic nature. In this case, we have a radioactive element with a half-life of 1,000 years, and starting mass of 20 grams.
The half-life basically means that half of the mass of an element is lost during a particular period of time. For the element in question we need to find out how much time will be needed for it to decrease to 5 grams. In order to get to the result, we just need to add 1,000 years on every decrease of half of the mass:
20/2 = 10
10/2 = 5
So in 1,000 years, the element in question will decrease to 10 grams, and in further 1,000 years (2,000 cumulatively) it will decrease to 5 grams.
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