Answer: spring and summer
Explanation:
Answer:
In moon rock sample the ratio of the number of stable argon-40 atoms present to the number of radioactive potassium−40 atoms is 7:1. Assume that all the argon atoms were produced by the decay of potassium atoms, with a half-life of 2.5×10^9yr. The age of the rock is
Explanation:
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Answer:
Where is the diagram pls?
Waxing crescent
First quarter
Waxing gibbous
Full moon
Waning crescent
The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.
