The answer is false for this question
Sometimes you mix different substances and you don't make new substances but mostly of the time you do make new substances , so the answer is chemical change.
Answer:
The answer is b for apex.
Explanation:
Law of Horizontality in Sediments. ... The Law of Original Horizontality was first proposed by Danish geological pioneer Nicholas Steno in the 17th century. The law states that layers of sediment were originally deposited horizontally under the action of gravity.
Dna and rna have different sugars that make them up their structure is also different dna is a double helix while rna is just a string therefore thay go through different proccess of breaking down