As the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.
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What is Kepler's second law?</h3>
Kepler's second law of planetary motion describes the speed of a planet traveling in an elliptical orbit around the Sun.
This law exaplains the speed of planets around the sun, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.
From the findings, the astronomical unit of the Mercury is 0.387 and the orbital period is 0.24 year.
From the equation above, as the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.
Learn more about orbital period here: brainly.com/question/22247460
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Mammals are smaller and can fit into smaller area to protect themselves while the big <span>dinosaur</span>s are huge and have less safe places to be in. Also, mammals don't need as much food as dinosaurs.
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Answer:
Man's genotype: Bbdd
Woman's genotype: bbDd
First child's genotype: Bbdd
Second child's genotype: bbDd
Explanation:
This is a dihybrid cross involving two genes; one coding for eye color and the other for hair color in humans. The allele for brown eye (B) is dominant over the allele for blue eyes (b) in the first gene while the allele for dark hair (D) is dominant over the allele for red hair (d) in the second gene.
According to the question, A man with brown eyes and red hair will possibly possess genotypes: BBdd or Bbdd while a woman with blue eyes and dark hair will possibly have genotype: bbDD or bbDd. Considering the fact that they produced children with recessive traits for both gene (blue eyes and red hair), it means that they are heterozygous for their dominant trait. This means that the ideal genotype for the man is Bbdd since he will produce gametes containing B and b alleles for the first gene while the ideal genotype for the woman is bbDd since it will produce gametes with D and d allele for the second gene.
Hence, a child with brown eyes and red hair will possess genotype: Bbdd since he/she cannot receive two dominant alleles for the first gene from both parents. A child with blue eyes and dark hair will have genotype: bbDd since he/she cannot receive two dominant alleles of the second gene from both parents.
Option are not provided in the question. The complete question is:
Which activity would help decrease the greatest carbon-releasing activity in US homes?
limiting time in hot showers
wearing layers of clothing
turning off lights when leaving a room
unplugging electronics when not in use
Answer:
wearing layers of clothing
Explaination:
Increasing carbon emission in environment is one of the major cause of global warming and climate change. There are several human activities that contribute to increament in carbon-releasing such as burning of fossil fuels, industrial manufacturing and deforestation et-cetra.
Wearing layers of clothes can decrease the greatest carbon-releasing activity in US homes because the weather of US is cold and people use a lot of fossil fuel to make their surrounding warm. Wearing layered clothes will help US people to feel warm and reduce the burning of fossil fuel which is major contributor to carbon emission.
Hence, The correct option is wearing layers of clothing.
