All categories

3 years ago

1. The point in the Moon's orbit when it's farthest away from the Earth is called

Biology

2 answers:

romanna [79]3 years ago

4 0

1.C | 2.D | 3.B | 4.D

---

1. The point in the Moon's orbit when it's farthest away from the Earth is called apogee. On the contrary, the perigee is the point in the Moon's orbit when it's the nearest from the Earth. Those points are very important for tides and other natural phenomenon such as eclipse and in general for the observation of the skies.

---

2. Gamma rays are a type of electromagnetic radiation cannot be focused. They diffuse from the emission points until there is an object that stops them. This is the reason why when you have to use gamma rays, you are in other rooms, in order to prevent the radiation to go through them.

---

3. The corona it's the outermost layer of the Sun's atmosphere. It's also the part where most of the activity of the sun that we can see take places. It's a subject that has fascinating scientists for centuries and only recently we are studying in more details this interesting and weird place, due to the advancement of technology.

---

4. Tides are a result of the gravitational attraction of the Sun and Moon. The Earth, the Sun and the Moon have masses and their own gravities. The interactions between these corps causes tides movement on Earth that are fundament to life on the planet, because they are a fundamental part in the cycle of water and air.

Debora [2.8K]3 years ago

3 0

Answer:

1.C

2.D

3.B

4.D

Explanation:

1. The orbit on which moon revolve around earth has a perigee point which is the nearest point to earth while apogee is the farthest point to planet earth.

A penumbral is a region in which occluding body obscure a portion of light. It has no relation with the moon's orbit. Also an eclipse is a phase based on position of moon with respect to earth and sun

Hence, option C is correct

2. Gamma rays are extremely powerful and energetic as they are produced as a result of radiation and hence it is very difficult to focus them on normal lenses which are designed to focus only visible light. They interact with the matter of the focusing surface and destroys them selves.

Hence, option D is correct

3. Corona is the outer surface of stars that extends to millions of kilometers into the space. Sun being a star has corona at its outer layer which is visible only during

total solar eclipse. Hence option B is correct

4. When the gravitational force of moon attracts the water on earth, it presume a rising and falling form that is termed as tides.

Hence option D is correct

You might be interested in

A person who has lost a large amount of blood but is still alive is found in awrecked automobile under a highway bridge. Several

kramer

Answer:

D. O

Explanation:

Blood type O- is often referred to as the universal donor. If someone has lost an excessive amount of blood and their blood type is unknown. It is safe to use a type of blood that anyone can accept without being rejected by the human body.

5 0

3 years ago

Trisha wants to find out whether a certain pesticide is carcinogenic to amphibians. Trisha is designing an experiment to test th

bija089 [108]

Answer:

C. Yes, Trisha should have a group of frogs in her experiment that is not exposed to any pesticide at all

Explanation:

The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study (in this case, the effect of pesticide) from the results that might be a consequence of other factors. The control group must be selected from the same population of the treatment group. All the groups must be similar in every variable that might influence the results, except for the study treatment.

Control group: Frogs that are not exposed to any pesticide

Treatment one: Frogs exposed to a certain concentration of pesticide

Treatment two: Frogs exposed to an increased concentration of pesticides ...

And so, the number of treatment groups will depend on the different concentrations of pesticides Trisha wants to study.

All groups must belong to the same population and of course, to the same species. They must also be exposed to the same variables, excepting for the pesticide variable.

7 0

4 years ago

One function of the vacuole is the storage of water.

nadezda [96]

Answer:

cell wall ⇒ plasma membrane ⇒ cytoplasm

Explanation:

Water enters the plant through several pathways. If the "Vacuolar Pathway" will be followed, the water will enter the plant through the cell wall, going to the plasma membrane, then to the cytoplasm and then into the "vacuole." The cell wall functions to protect the plant's cell membrane/plasma membrane. The plasma membrane is semipermeable and it allows materials to be transported in and out of the cell. The cytoplasm consists of the plant cell's organelles. One of its organelles is the "vacuole," which is responsible for the plant's homeostasis.

5 0

3 years ago

two genes are involved in determining the color of a species of foxglove flower. the dominant allele of the m gene produces a li

scZoUnD [109]

The d gene is therefore heterozygous because it has two different alleles of a particular gene or genes.

In this case, there are two genes whose expression can be seen i.e., gene m produces light magenta pigment, and d causes a darkening of the pigment produced by the m gene. It is a typical case of heterozygosity.

A dominant allele may be a variety of a quality that will create a certain phenotype, indeed within the nearness of other alleles. A prevailing allele ordinarily encodes for a working protein.

The allele is overwhelming since one duplicate of the allele produces a sufficient protein to supply a cell with a bounty of a given product. A heterozygous person may be a diploid living being with two alleles, each of a different sort.

Even though each living being can have as it were two alleles, there can be numerous, numerous varieties of quality displayed in a populace.

Learn more about dominant alleles at

brainly.com/question/2717245

#SPJ4

3 0

2 years ago

What causes the moon to change its appearance (shape)?

expeople1 [14]

Answer:

What causes the moon to change its appearance is that we see different amounts of the moon as it orbits earth.

Explanation:

6 0

3 years ago

Read 2 more answers