Answer is 1/4 of the atoms
at 0 years it would be the full amount (X)
at 10 million years you have half: X/2
at 20 million years you have 1/4 because: (X/2)/2 will equal 1/4
Answer:
The banking is not a common service in Cuba.
Explanation:
A is correct because the banking is not really a sector that is well developed, and this is mainly because of the political climate in the country and that it is still relatively closed to the world.
B is not correct because Cuba is a country that has excellent health care, and a lot of people have their goal of becoming doctors.
C is not correct because tourism is one of the most developed sectors in the country, so naturally many people work in it.
D is not correct because the cigar rolling has traditionally been part of the Cuban culture, and having the best brand in the world, it is no wonder that a lot of people still do this.
Answer:
winter
Explanation:
due to axial tilt and eccentricity, the southern hemisphere is tilted toward the sun in the winter months as australians have their summer in the UK's winter.
Ocean wind circulation mainly mechanism climate change Earth