Answer: The correct answer is "radiometric dating".
Explanation:
Radiometric dating: It is a technique which is used to estimate the age of the rocks. In this technique, there is neither daughter product or parent nuclide can leave or enter the material after its formation.
Radioactive atoms are unstable. It decays into stable daughter atom.
Firstly, measure the quantity of the unstable atoms which are left in rock. Then, compare remaining the quantity of the unstable atoms with the quantity of stable daughter atoms in the rock to calculate the passed time since that rock formed.
Therefore, Scientists have been able to estimate the age of our solar system by radiometric dating.
The interaction that caused the archer to miss was probably refraction.
Answer:
The answer is D.) 90
Explanation:
the electromagnetic wave is a transverse wave. the electric field makes an angle of 90° with the magnetic field. both these fields, in turn, make an angle of 90° with the direction of movement of the wave.
Answer:
The answer to the question is
The luminosity of stars A is four times that of star B
Explanation:
Flux (F) produced by a source of light is directly proportional to the brightness or Luminosity (L), and varies inversely to its distance d, that is 
Therefore if the two stars present the same flux then we have
then crossing out like terms gives 
or 4·L₁ = L₂
The luminosity of star A is 4 times the that of star B
