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faltersainse [42]
3 years ago
7

Question 9 What evidence from the experiment can the student use to support his claim about plants grown with hydroponics? A The

tomato plants grown without soil had thicker stems than the tomato plants grown in soil. The tomato plants grown without soil had fewer leaves than the tomato plants grown in soil. C The tomato plants grown without soil grew to taller heights than the tomato plants grown in soil. D.The tomato plants grown without soil grew less branches than the tomato plants grown in soil.​
SAT
1 answer:
vichka [17]3 years ago
3 0

Answer:

I think C, Sorry if wrong

Explanation:

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The answer is D. Poultry

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3 years ago
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Just answer<br><br><br><br> Precambrian time.
Sonja [21]

Answer:

The Precambrian (or Pre-Cambrian, sometimes abbreviated pЄ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time.

Explanation:

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3 years ago
What are three good health practices children need for a lifetime?
QveST [7]

Well, you could start by giving your child a daily dose of probiotics then, exersing, eating more healthy food than junk food, sleep early, and drink lots of water.

7 0
3 years ago
In casting experiments performed using a certain alloy.
jeyben [28]
Answer:
A) Cm = 2.232 s/mm²
B) Time taken to solidify = 74.3 seconds
Explanation:
(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³
There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²
So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm
Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;
Cm = 155/(8.333)²= 2.232 s/mm²
(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;
Volume of cylinder is;
V = (πD²L) /4
So,V = (π x 30² x 50)/4 = 35,343mm³
Surface area of cylinder is;
A = (2πD²)/4 + (πDL)
Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²
Volume/Area is;
V/A = 35,343/6126 = 5.77 mm
Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²
Since Cm =[Tts] /(V/A)²
Making Tts the subject, we have;
Tts =Cm x (V/A)²
Tts = 2.232 x (5.77)² = 74.3 seconds
7 0
2 years ago
Use the periodic table to select the element that best fits each of the following descriptions. Which elements likely conduct el
3241004551 [841]

Answer:

The answer is:

A) Chromium

Option D) Calcium

Option E) Osmium

The next ones are: helium and sodium.

Explanation:

3 0
3 years ago
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