The answer is; B
Rocks have naturally occurring and spontaneously radioactive atoms in them, such as carbon-14. These element isotopes decay into other types of atoms over millions of years. Therefore, by measuring the amount of these radiometric substances, and knowing the half-life of the isotopes, it is possible to postulate the age of a rock to within certain ranges of error.
It’s A ok cjcydufufxycucjfhxycifyfyy it dug my yogi
The correct option is c. (20 m) .
As the formula to calculate wavelength is :
wavelength = wavespeed / frequency
Explanation: Spotted fur because it helps the serval to blend in and punce on unexpecting prey
Consciousness refers to a state of awareness or alertness in which the subject is cognizant of one's environment and self. It allows people the awareness to selectively focus on certain stimuli.
The following statements does not describe a key feature of consciousness: C. Consciousness is permanent. In contrast, consciousness is not permanent because consciousness is dependent upon the functioning of the brain.
