You should try to go back to land and find a cover and make a little shelter and go under it then wait it out.
the answer is the trophic level
Half life is the time taken by a radioactive isotope to decay by half of its original mass. In this case the half life of carbon-14 is 5500 years.
The original mass is 30 g and the new mass is 3.75 g.
New mass = Original mass × (1/2)^n, where n is the number of half lives;
3.75 = 30 × (1/2)^n
1/8 = (1/2)^n
n = 3
Thus, the time taken will be; 3 × 5500 = 16500 years.
Answer:
Johannes Kepler was a student of Tycho Brahe.
Explanation:
Johannes Kepler joined the wealthy astronomer Tycho Brahe as a student as assistant. After the death of Brahe, Kepler used his observations data and based on it formulated the three laws of planetary motion. Galileo described the heliocentric model with planets revolving about the Sun in circular orbits which was corrected by Kepler. He corrected that the orbits are elliptical.
Ptolemy believed in geocentric model, according to which Earth is at the center of the universe. Galileo did not built observatory. Issac Newton believed in heliocentric model of the universe.
