Answer:
grams
Explanation:
Given -
Half life of the silicon-32 
years
Half life means the time period required by a radioactive element to reduce its mass by half.
Radioactive decay formula is
Where
A represents the amount of radioactive element after time t years
represents the initial amount of radioactive element
time of decay
half-life of the substance
Substituting the given values in above equation, we get -
grams
The process is when the magma cools and make crystals
Answer:
The correct answer is option D. a cube.
Explanation:
Epithelium cells are type of cells that has a simple cuboidal epithelium that consists of only a single layer of cells that are cube-like or cuboidal in shape. In the question given cell is similar to these cells.
These cells have large, spherical nuclei present in the center. These cells are cube-shaped cells which support the option D to be correct.
Thus, the correct answer is option D. a cube.
A calorie is a unit of.
Energy.
The Calorie used on food labels is equal to.
1000 calories<span>.</span>
