Imagine you are volunteering in a 1st grade classroom. The students recently learned about the water cycle. One student raises her hand and asks, “I heard that elements like carbon can cycle too. How does carbon cycle? Is it like how water cycles?” How would you explain the cycling of carbon to this 1st grade class? Keep in mind that the students have likely not taken an advanced science course yet!

Carbon cycle is also important for the survival of life on earth.

Explanation:

In carbon cycle, carbondioxide gas is present in the atmosphere. This carbondioxide gas is taken inside by the plant body through stomata and made food from it. When this food is eaten by animals, this carbon is transferred to their bodies. During breathing, carbondioxide gas is removed from animal body and the carbondioxide gas again goes to the atmosphere.

Total number of Possible three digit number , using 1,3 and 9 ,either using all at once , or using 2 at a time , or using all three

     =(First place can be arranged in 3 ways )×(Second place can be arranged in 3 ways )×(Third place can be arranged in 3 ways )

 =3 × 3 ×3

 =27 Numbers

We can make 27 different type of scores.

⇒All of them are(Sum of Total Score are=3,5,7,9,11,13,15,19,21,27)

1+1+1=3               3+3+3=9        9+9+9=27      1+3+9=13      1+9+3=13

1+1+9=11            1+1+3=5         9+3+3=15      3+1+9=13      3+9+1=13

1+9+1=11             1+3+1=5         3+9+3=15      9+3+1=13      9+1+3=13

9+1+1=11            3+1+1=5         3+3+9=15      9+9+1=19      1+9+9=19 3+9+9=21             9+9+3=21                            9+1+9=19       3+1+3=7                                            

9+3+9=21      1+3+3=7                                                         3+3+1=7                                                                                           ⇒ There are 10 Different Score in all.