Answer:
Radiometric dating methods
Explanation:
Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.
The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.
The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.
Question: <em>The image below shows the life cycle of a plant. Which class does this plant belong to? </em>
<em>Answer: Gymnosperm</em>
<em>If you look up Gymnosperm Life Cycle of Google, and go to images, you will find a diagram/chart of the Gymnosperm Life Cycle, that matched the picture you gave.</em>
Hope this helps, have a good day. c;
Link to the picture of the diagram below...:
https://www.google.com/search?q=gymnosperm+life+cycle&rlz=1C1GCEB_enUS787US787&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjR46qP1pDfAhUKR6wKHZVIBzQQ_AUIDigB&cshid=1544287366922000&biw=1707&bih=732&safe=active&ssui=on#imgrc=15Qy4QiBWX-1iM:
You can use dimensional analysis to figure this out.
× 
= 3 grams
If done correctly, ml and ml will cancel out, leaving you with grams.
If you don't know dimensional analysis, simply multiply <em>3 ml</em> by <em>1 grams </em>and that should still get you 3 grams.
Isotopes are atoms with the same atomic number but different atomic weights. Atoms of different isotopes are atoms of the same chemical element. They differ in the number of neutrons in the nucleus.
