Answer:
the answer is lungs
Explanation:
All of the animals from frogs and up have and use lungs.
Answer:
Rock Y
Explanation:
The rock that is older shall be determined based on the number of half lives it has witnessed. A half life is simply the amount of time required for a sample to decay to half of its original mass.
Rock X
From 100% uranium, it decays to 50% uranium. This means it went through just one half life.
Rock Y
From 100% uranium to 25% uranium
100 --> 50 (first half life)
50 --> 25 (second half life)
This means it wen through 2 half lives.
Rock Y is older than Rock X
Answer: 5.844 grams of NaCl needed to make solution.
Explanation:
7 is atomic symbol 9 is atomic density 8 is the atomic number
I think the answer is c since the it’s looking at NW, the wind is coming from SE
