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german
3 years ago
12

How does the colour of star help to find its age​

Biology
1 answer:
Finger [1]3 years ago
4 0

Answer:

As stars age, they run out of hydrogen to burn, decreasing the amount of energy they emit. Thus, younger stars can appear bluer while older ones appear more red, and in this way, a star's color can tell us something about that star's age.

Explanation:

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The time required for an automotive center to complete an oil change service on an automobile approximately follows a normal dis
timurjin [86]
Approximately ten percent
8 0
3 years ago
Final Practice: Read each statement. If the statement is true, write “T”. If the statement is false, write “F”.
gavmur [86]

Answer:

F, i just guessed because I do not see the statements

Explanation:

5 0
3 years ago
A botanist discovers a new species of land plant with a dominant sporophyte, chlorophylls a and b, and cell walls made of cellul
olchik [2.2K]

Answer:

e. spores

Explanation:

In the given question, the characteristics of a plant are mentioned which are the dominant sporophyte, cell wall and the Chl a or b.

It is mentioned that the plant has a dominant sporophyte therefore it produces the spores during its life cycle. The other features like the endosperm, seeds, flowers are the characteristics on the basis of which the plant can be characterised as they differ in the plants.

Since the production of spores is a characteristic feature of the sporophyte, therefore, it will be least considered by the botanist to discover a new species.

Thus, Option-E is the correct answer.

3 0
2 years ago
What did the worker bees feed on​
stiks02 [169]
Worker bees eat the left over polin and nectar left by the honey bees.
6 0
3 years ago
1.what did magnesium and oxygen atoms had to do to bond ?
devlian [24]

Answer:

1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).

2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.

3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.

Happy Holidays!

7 0
2 years ago
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