It decrease as you move away from Earths surface
A deuterium nucleus consists of one proton and one neutron. The quark composition of a deuterium nucleus is
A- 2 up quarks and one down quark
B- 2 up quarks and 4 down quarks
C- 3 up quarks and 3 down quarks
D -4 up quarks and 2 down quarks
The quark composition of a deuterium nucleus is 3 up quarks and 3 down quarks. Thus, option "C" is correct.
<h3>What is the composition of quark?</h3>
The quark composition of a deuterium nucleus is 3 up quarks and 3 down quarks. The overall charge of the deuterium nucleus is +1. Comparing the given overall charge to the chart of the Particles of the Standard Model, the overall charge can be determined from the combinations of the choices.
Thus, option "C" is correct.
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Answer:
C. Organisms are now divided into three kingdoms.
Explanation:
In the early 1860s, a German scientist named Ernst Haeckel suggested using a three kingdom system of classification. Haeckel's three kingdoms were Animalia, Plantae, and Protista.
The tropical rainforest is the moist biome which is present near the equator of the Earth. These rainforests receive an average of 60-160 inches of rainfall per year with no dry season throughout the year. In these forests, the canopy of the trees prevent the sunlight from reaching the floor of the forest. This makes it difficult for the vegetation to survive on the floor as sunlight is essential for the growth of the vegetation on the floor.
Hence, the correct answer is 'option - C - sunlight'.
The correct answer is (B) because he should always wear safety garments for preventative purposes.