The terrestrial planets represent characteristics of the four planets that are closest to the sun. Therefore, the correct option is A.
The solar system contains 4 planets that are closest to the sun. These planets are Mercury, Venus, Earth, and Mars. These planets are called terrestrial planets. Like Earth, these planets are rocky and have the same composition and structure. Hence, they are also called telluric planets.
Typically, these planets have a metallic core made primarily of iron and a silicate mantle. On their surface, they have topological characteristics like mountains, valleys, craters, etc.
Terrestrial planets have a secondary atmosphere, as opposed to large planets, which have a main atmosphere. It is well known that terrestrial planets have few or no satellites of their own. For instance, the Earth has just one satellite, but Mars has two, and Venus and Mercury both have none. Therefore, the correct option is A.
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The question is incomplete, but most probably the complete question is,
Which of the following represents characteristics of the four planets closest to the sun?
1. Terrestrial planets
2. Giant planets
3. Dwarf planets
4. Gas planets
Answer:
they are hot or can get hot
2) What is the hypothesis?
3) Identify the independent variable versus the dependent variable.
4) What variables were held constant in this study?
5) What was the control group?
6) What data was collected during the study?
7) What this data qualitative or quantitative?
8) What was the study's conclusion?
Answer:
1. Research question is a question which is the aim of any experiment or research, in this case, the question addressed by the study is - Testing the effects of a newly developed drug to lessen the effects of the common cold.
2. Hypothesis is an explanation for the reason for any problem it does not need the evidence and completely based on logic.
The newly developed drug is able to lessen the symptoms of a common cold.
3. Independent variable is a variable manipulated or changed during the experiment:
Administration of drug or placebo (sugar pill)
4. Dependent variable is the response to the effect of the independent variable:
Number of tissues for each volunteer
5. Control group is available that remain constant throughout the study or used to compare the results:
Administration of sugar pill to 25 volunteers
6. Data is the result that the study generated -
At the end of the 7 days or one week period, symptoms of common cold disappear in both sets of volunteers who had taken either the drug or the placebo.
7. Data in this study is found is Qualitativedata as the drug is not administrated in doses.
8. Conclusion of the study is that the Placebo effect present as sugar pills relieve the common cold so This drug needs even more analysis.
Answer:
Centrosomes and Lysosomes
Explanation:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Answer:
here
Explanation:
industrial residue- cloth fabric
agricultural residue- husk
kitchen waste- egg shells
virgin wood- bark
Image result for In what era did the humans appear
Hominins first appear by around 6 million years ago, in the Miocene epoch, which ended about 5.3 million years ago. Our evolutionary path takes us through the Pliocene , the Pleistocene , and finally into the Holocene, starting about 12,000 years ago.