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4 years ago

Which occur most lunar or solar eclipse

1 answer:

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Solar eclipses occur more often than lunar eclipses because in a lunar eclipse, the moon has to be perfectly aligned with both the earth and the sun.

Solar eclipses occur about 2 to 4 times per year, but the area on the ground covered by totality is only about 50 miles wide. In any given location on Earth, a total eclipse happens only once every hundred years or so, though for selected locations they can occur as little as a few years apart.

Eclipses of the Moon by the Earth's shadow occur less often than solar eclipses, however, each lunar eclipse is visible from over half the Earth. At any given location, you can have up to three lunar eclipses per year, but some years there may be none.

In any one calendar year, the maximum number of eclipses is four solar and three lunar.

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When Jay leaves his dark room and enters the bright hallway, his eyes begin to adjust to the increased amount of light. During t

aleksley [76]

Answer:

The correct answer is: Pupil.

Explanation:

Light enters inside the side through a small opening in the iris of the eye which is called the Pupil.
The outer most part of the eye Cornea and the outer chamber aqueous humor are both transparent and allow light to refract through them.
The Iris, which a circular and thin comes next to the cornea and aqueous humor. It is reponsible for regulating the amount of light that can reach the retina by altering the pupil size.
The change in the size of the pupil is mediated by muscles in the iris.
There are two types of muscles, radial muscles and circular muscles.
In bright light, the radial muscles of the iris relax while the circular muscles contract. This decreases the pupil size allowing less light to pass into the retina.
In dim light, radial muscles of the iris contract while the circular muscles relax. This increases the pupil size allowing more light to pass into the retina.

7 0

3 years ago

Which is predicted by the theory of special creation?

SSSSS [86.1K]

The best and most correct answer among the choices provided by your question is the first choice or letter A.

The theory of special creation predicted that <span>species change by adaptation to their environment.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

6 0

3 years ago

Perimenopause describes the time period before menopause, the end of a woman’s reproductive years. It often starts a few years b

Grace [21]

Irregular periods.
Hot flashes and sleep problems. Hot flashes are common during perimenopause. The intensity, length and frequency vary. Sleep problems are often due to hot flashes or night sweats, but sometimes sleep becomes unpredictable even without them
.Mood changes. Mood swings, irritability or increased risk of depression may happen during perimenopause. The cause of these symptoms may be sleep disruption associated with hot flashes. Mood changes may also be caused by factors not related to the hormonal changes of perimenopause.
Vaginal and bladder problems. When estrogen levels diminish, vaginal tissues may lose lubrication and elasticity, making intercourse painful. Low estrogen may also make vagina vulnerable to urinary or vaginal infections. Loss of tissue tone may contribute to urinary incontinence.
Decreasing fertility. As ovulation becomes irregular, the ability to conceive decreases.
Changes in sexual function. During perimenopause, sexual arousal and desire may change.
Loss of bone.
changes in cholesterol level

7 0

4 years ago

When DNA fragments are joined with a DNA ligase, an array of products are created. How does this happen?

S_A_V [24]

<h3><u>Answer and explanation</u>;</h3>

DNA ligase is a DNA-joining enzyme. If two pieces of DNA have matching ends, ligase can link them to form a single, unbroken molecule of DNA.
DNA ligase usesATP as an energy source to catalyzes a reaction in which the phosphate group sticking off the 5’ end of one DNA strand is linked to the hydroxyl group sticking off the 3’ end of the other.
The reaction produces an intact sugar-phosphate backbone of the DNA strand.

3 0

3 years ago

A certain chocolate bar contains 6 mg of caffeine in a 1.5 oz. Serving. The king-size version of the chocolate bar is 85 grams.

olga nikolaevna [1]

Answer:

The amount of caffeine that would be consumed if one eats the entire king-size bar will be 11.99 mg

Explanation:

This question can be reframed in the manner below for better understanding.

If 1.5 oz or ounce of a chocolate bar contains 6 mg of caffeine, how many milligrams (mg) of caffeine is contained in 85 grams of the same chocolate bar.

Firstly, the ounce should be converted to grams

If 1 ounce = 28.35g

1.5 ounce = ?

= 1.5 × 28.35/1

=42.53g

Hence, 42.53g of the chocolate bar contains 6 mg of caffeine

85g of the chocolate will contain

42.53g = 6mg

85g = X

where X is the amount of caffeine that will be consumed in mg

X = 85 × 6/42.53

X = 11.99 mg

The amount of caffeine that would be consumed if one eats the entire king-size bar will be 11.99 mg

4 0

3 years ago