All categories

3 years ago

Need 11 facts about solar eclipse

Biology

2 answers:

emmainna [20.7K]3 years ago

7 0

Answer:

1-The longest a total solar eclipse can last is 7.5 minutes.

2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.

3-Depending on the geometry of the Sun, Moon, and Earth, there can be between 2 and 5 solar eclipses each year.

4-A total solar eclipse can happen once every 1-2 years. This makes them very rare events.

5-Almost identical eclipses occur after 18 years and 11 days. This period of 223 synodic months is called a saros.

6-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.

7-There is another type of solar eclipse, known as a hybrid eclipse, which shifts between a total and annular eclipse depending on where you view it from on Earth. These are comparatively rare.

8-The speed of the Moon as it moves across the Sun is approximately 2,250 km (1,398 miles) per hour.

9-If you are at the North or South Poles, you cannot view a total solar eclipse.

10-In ancient times, people thought an eclipse was a sign that the gods were angry or that bad things were about to happen.

11-During a total solar eclipse day time looks more like twilight.

Explanation:

Your welcome.

SVEN [57.7K]3 years ago

3 0

1-The longest a total solar eclipse can last is 7.5 minutes.

2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.

3-Almost identical eclipses occur after 18 years and 11 days.

4-This period of 223 synodic months is called a saros.

5-Each year there are between 2 and 5 solar eclipses.

6-The total solar eclipse, when the Moon completely obscures the Sun and leaves only the faint solar corona, is known as a Totality.

7-Total solar eclipses are rare, happening only once every 18 months.

8-Total solar eclipses produce harmful rays that can cause blindness.

9-If any planets are in the sky at the time of a total solar eclipse, they can be seen as points of light.

10-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.

11- A solar eclipse can only occur when the Moon is close enough to the ecliptic plane during a new moon

You might be interested in

Each of the four pedigrees that follow represents a human family within which a genetic disease is segregating. Affected individ

Ne4ueva [31]

Answer:

The following four traits are -:

Pedigree 1 - A recessive trait (autosomal recessive) is expressed by pedigree 1.
Pedigree 2- Recessive inheritance is defined by Pedigree 2.
Pedigree 3 - The inheritance of the dominant trait (autosomal dominant) is illustrated by Pedigree 3.
Pedigree 4- An X-like dominant trait is expressed by Pedigree 4.

Explanation:

Explaination of each pedigree chart-

Pedigree 1 demonstrates the recessive trait since their children have been affected by two unaffected individuals. If the characteristics were X-linked, in order to have an affected daughter, I-1 would have to be affected. $X^A$ In this, both parents are autosomal recessive trait carriers, so the child will be affected by a 1/4 (aa)
Recessive inheritance is defined by Pedigree 2. This is X-related inheritance as autosomal recessive inheritance has already been accounted for in part 1. This inference is confirmed by evidence showing that the father (I-1) is unaffected and that only the sons exhibit the characteristic in generation II, suggesting that the mother must be the carrier. The individual I-2 is a carrier for this X-linked trait. A typical Xa chromosome is attached to the unaffected father (I-1), so the chance of carrier II-5 is 1/2. Probability of an affected son = 1/2 (probability II-5 is a carrier) x 1/2 (probability II -5 contributes ( $X^A$ ) x 1/2 (probability of Y from father II-6) = 1/8. An affected daughter's likelihood is 0 because a typical $X^A$ must be contributed by II-6.
The inheritance of the dominant trait is demonstrated by Pedigree 3 because affected children still have affected parents (remember that all four diseases are rare). The trait must be autosomal dominant because it is passed down to the son by the affected father. There is a 1/2 risk that the heterozygous mother (II-5) would pass on mutant alleles to a child of either sex for an autosomal dominant feature.
Pedigree 4 is an X-linked dominant function characterized by the transmission to all of his daughters from the affected father but none of his son. On the mutant X chromosome, the father (I-1) passes on to all his daughters and none of his sons. As seen by his normal phenotype, II-6 therefore does not bear the mutation. An affected child's likelihood is 0.

In the question the pedigree chart was missing ,hence it is given below.

7 0

3 years ago

Blood is often collected in what capillary tubes rather than plain capillary tubes to prevent clotting of the blood

motikmotik

The blood is collected in heparinized capillary tubes to prevent clotting. Heparin is a blood thinner and this anticoagulant is produced naturally by mast cells and basophils. But heparin can not dissolve or break the preformed clots.

6 0

3 years ago

sweet-ann [11.9K]

I believe it would be polyphyletic.
Polyphyletic groups are formed when two lineages convergently evolve similar character states. Organisms classified into the same polyphyletic group share phenetic homoplasies as opposed to homologies. The key difference between paraphyletic and polyphyletic groups is that paraphyletic contain their common ancestor, whereas polyphyletic groups do not.

3 0

4 years ago

How does yellow fever spread?

Leni [432]

Answer:

mosquitoes

Explanation:

3 0

4 years ago

Read 2 more answers

A six-carbon sugar is an example of a _________ that can join with other molecules to form a __________ such as starch or cellul

Vitek1552 [10]