Wheat, corn and rice more than half of the calories consumed by humans. It provides nearly 60% of total plant calories consume by humans. These three crops are grown worldwide. Although there are specific crops for specific region. One of the old cultivated crops is wheat. While corn is another version of wild cereal grass. Rice is the primary source of food.
Answer:
One relative of whales was Pakicetus, which lived 50 million years ago. (the group of marine animals that includes dolphins and whales).
Explanation:
Answer: 100 grams of the parent isotope will remain after one half life.
Explanation:
Mass of the isotope present at initial stage =
The mass of the parent isotope left after the time ,t=N
Time taken by the samle ,t =
The half life of the sample :
100 grams of the parent isotope will remain after one half life.