Fossils (from the Latin fossilis, which means 'excavated') are the remains or signs of the activity of past organisms.These remains, preserved in sedimentary rocks, may have undergone changes in their composition (by diagenesis) or deformations (by dynamic metamorphism) more or less intense.
Answer:
B. one fourth of the original substance
Explanation:
a substance's half life is how long it takes for half of the atoms in the substance to chemically decompose. once it's half life has been completed, it will start again with the remaining material. after 6000 years, only half of the material will remain, after 12,000 years a quarter wil remain, after 18,000 years an eighth will remain, etc.
Physical landmarks could be the answer
Answer:
The statement is true.
Explanation:
eThe deciduous forests are forests that are found in temperate climates. They are dominated by trees that are well adapted for life in conditions where there are changes of seasons, thus they are able to survive in both high and low temperatures, with inconsistent precipitation, shorter droughts, etc.
Because of the change of seasons where these forests are found, the precipitation is manifested in more than one way. During the warmer part of the year, the precipitation comes in the form of rain. During the colder part of the year, the precipitation comes in the form of snow. Occasionally, the precipitation can come in other forms as well, such as hale or frozen rain.
Answer:
prevailing westerlies
Explanation:
Because winds are named from the direction in which they originate, these winds are called prevailing westerlies. Prevailing westerlies in the Northern Hemisphere are responsible for many of the weather movements across the United States and Canada.