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Alik [6]
2 years ago
6

How are water and minerals transported and used in vascular plants?

Chemistry
1 answer:
Mariana [72]2 years ago
5 0

Answer:

vascular plants have that absorb the water and mineral from the air

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Which of the following are true about both the sun and the stars? Choose the three correct answers.
Andrew [12]

Answer:

D, F

Explanation:

8 0
2 years ago
HELP ASAPPPP
Cloud [144]

Answer:

13 years

Explanation:

From;

0.693/t1/2 = 2.303/t log (No/N)

Where;

t1/12 = half-life of Cobalt-60 = 5.3 years

t = time taken = the unknown

No = mass of radioactive material originally present = 5.2 g

N = mass of radioactive material at time t = 0.95 g

Substituting values;

0.693/5.3 = 2.303/t log (5.2/0.95)

0.131 = 2.303/t(0.738)

0.131 = 1.6996/t

t =  1.6996/0.131

t = 12.97 years

t = 13 years(to the nearest whole number)

3 0
3 years ago
Which atom will gain electrons in the reaction, and how many.
Anna35 [415]

Answer:

Most atoms do not have eight electrons in their valence electron shell. Some atoms have only a few electrons in their outer shell, while some atoms lack only one or two electrons to have an octet. In cases where an atom has three or fewer valence electrons, the atom may lose those valence electrons quite easily until what remains is a lower shell that contains an octet. Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.

Explanation:

yan na answer

7 0
2 years ago
The arrows below represent the velocities of two vehicles. Which claim explains why the velocity of each vehicle is a vector qua
ollegr [7]

Answer:

It has direction and size.

Explanation:

All physical quantities are generally grouped into two;

i) Vector quantities

ii) Scalar quantities

Vector quantities are those quantities that has both magnitude (size) and direction.

Scalar quantities are those quantities that has magnitude (size) and no direction.

Velocity is a vector quantity because it has direction and size.

4 0
2 years ago
What two factors most affect the pitch of the sounds made by a person's vocal cords? A. the volume and health of the person's lu
dusya [7]

Answer:

The pitch of the sound a person makes is determined by several factors, including the size and tension of his or her vocal cords.

Explanation:

6 0
2 years ago
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