The answer is B and I need 20 characters so I am typing random words
Friction creates heat between two objects rubbing together, and slows the moving object down.
Answer:
Box 1: AA
Box 2: Aa
Box 3: AA
Explanation:
In order to figure out the pedigree, you first have to do a punnet square- kind of like cross-multiplying. EX: For the first box: Aa x AA
For box one, we know that it is Aa, and not AA, because box 2 has to be AA.
We know that because Aa X Aa would give us some "aa" offspring which we do not see in the last generation (see 2nd pic). The only way to get no "aa" offspring is to have an AA X Aa cross.
90% of the available energy is lost in some form of heat, transferring light energy into different living organisms
Answer:
Composition: mostly hydrogen and helium gas
Mass: 1.989 × 10³⁰ kg
Explanation:
Sun is a star at the center of the solar system. It is mostly composed of Hydrogen and Helium gases. Fusion of Hydrogen into Helium in the core powers the sun. Huge amount of heat and light energy is liberated. The mass of the Sun is 1.989 × 10³⁰ kg. Sun is a Population I star.