4 years ago

According to the picture above, which layer contains :

Chemistry

1 answer:

Aleonysh [2.5K]4 years ago

6 0

Answer:

a) layer 4

b) layer 1

Explanation:

Older the layer=older the fossils

Newer the layer=newer the fossilss

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How many grams of ZNO shoulbe added to 30gms of 10%ZNO to get 15%oint

patriot [66]

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<h3>Further explanation:</h3>

Given

30gms of 10%ZnO(Zinc oxide)

15% ZnO

Required

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For 15% ZnO : x= ZnO added

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