B. Composition mostly hydrogen and helium gas Mass 1.989 × 10³⁰ kg
Explanation:
The best data that describes the sun is that it's composition is made up of mostly hydrogen and helium gas with a mass of about 1.989 x 10³⁰kg.
- The sun is the largest body in our solar system and all planetary bodies revolves round it.
- At the core of the sun, nuclear fusion is occurring.
- Here, small atomic nuclei combines into larger ones with the release of a large amount of energy.
- The small nuclei are hydrogen and they produce helium.
- This process produce energy for the whole solar system.
- The sun is best defined as giant hot ball of gases.
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Answer: the mantle B
Explanation: Largest layer resulting in biggest mass.
Heat detection is needed for breeding.There is a system called timed breeding or the appointment breeding which is made so that the onset of heat and ovulation are induced for an animal to be inseminated at the right time. These then will help the breeder as well as the owner.
Based on the result in this
experiment, the mobile phase rose up on the TLC plate then dragged the ink from
the marked dot up along the TLC plate, which is the light pink pigment whose Rf
was 0.98 had the greatest affinity to the mobile phase. Moreover, the pigment
that was closer to the marked dot was more attracted to the stationary phase,
which is the dark pink spot that had an Rf of 0.72 and had a greater affinity to the
stationary phase.
The nerves go through the muscular system and "control" them making then feel and move. hope this helps
