You can tell the vein from the others by holding the leaf up to a light. This makes the leaf a bit see through and the veins will be clearly visible as they do not become semi-transperent. You can also put paper on top of the leaf and rub gently over the paper with crayon to see the veins. They will make darker or lighter lines on the paper depending on if you have the leaf facing up or down.
How_can_you_tell_the_vein_from_other_leaf_structures
3,3
4,4
2,1
1,5
5,2 are the answers
Answer:
bioluminescent-from the word you get bio-somthing with connection of biology also luminous-something deal with light hence what bioluminescent molecules are living organism eg of special chemical are luciferin and luciferase and photoprotein
Answer:
irreversible chemical change
Explanation:
A chemical change always results in a new substance and as it is not possible to reverse it, it is an irreversible chemical change.
I hope you understood :)
A cheetah can run about 70 miles per hour
