Question
What is the level of carbon dioxide (CO2) present in the
air within the soil?Solution
The level of carbon dioxide (CO2) in soil air can vary but is typically around 0.3 to 1.5% by volume. This CO2 is generated by microbial respiration and root respiration. High CO2 levels can affect plant growth, while low levels can limit microbial activity.
If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then what is the value of the expression:
24 B 2 C 24 A 4...
Which two signs should be interchanged to make the given equation correct?
15 ÷ 6 - 10 x 5 + 11 = 99
If x stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’, and – stands for ‘division’, then 90 x 85 – ...
Statements:
A < B ≥ C > U = W; R < Q > L ≤ W = Y; Q > P
Conclusions:
I. B < P
II. C > R
 By interchanging which two signs the question will be correct?
15 + 5 ÷ 2 – 9 × 3 = 22
If 236 = 33, 487 = 57, 6391 = 57, then 851 = ?
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
28 * 174 * 6 * 4 * 126 = 18
After interchanging "×" and "÷", "7" and "4", which of the following equations becomes correct?
If '+' means '-', '×' means '+', '-' means '÷', and '÷' means '×', then what is the value of the expression ' 100 - 10 + 30 × 5 ÷ 2 × 10' ?
...In an imaginary mathematical system, symbol ‘@’ stands for addition, ‘$’ stands for division, ‘&’ stands for subtraction, and ‘#’ stands...
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