Answer:The answer is B
Explanation:
There is less water lost due to evaporation and therefore more available to plants. Mulch and minimum tillage results in twice as much available water as does deep tillage. This is an immediate benefit. We are looking for future benefits: less runoff and erosion, more soil stays in place, the soil is more fertile, and farmers use less fossil fuels.
Answer: 25°C=77°F
Explanation:
FORMULA
F=9/5 C+32
-----------------------------------
Given: C=25°
F=9/5 C+32
F=9/5 (25)+32
F=45+32
F=77°
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According to Dalton's Law of Partial pressure, the pressure exerted by a mixture of non-reacting gases is equal to the sum of their partial pressure.
Mathematically,
Total Pressure = P₍₁₎ + P₍₂₎ + P₍₃₎ + ....... ------(1)
Data given:
Partial pressure of Nitrogen = P₍₁₎ = 587 mmHg
Partial pressure of Oxygen = P₍₂₎ = 158 mmHg
Partial pressure of Argon = P₍₃₎ = 7.00 mmHg
Putting these values in eq 1.
Total Pressure = 587 mmHg + 158 mmHg + 7 mmHg
Total Pressure = 752 mmHg
Answer: 1.color change
2.temperature change
3. precipitate formation
4.gas formation
Explanation: There is no pic
The volume = 309.04 ml
<h3>Further explanation</h3>
Given
Specific gravity=-1.28 and strength =24.7% by mass of H₂SO₄
mass 125g of ZnC0₃
Required
The volume of H₂SO₄ Solution
Solution
Reaction
ZnCO₃ + H₂SO₄ → ZnSO₄ + CO₂ + H₂O
mol of ZnCO₃(MW=125.4 g/mol) :
From equation, mol ZnCO₃ : H₂SO₄= 1 : 1 so mol H₂SO₄=0.997
mass of H₂SO₄ (MW=98 g/mol) :
mass of solution :
Volume of solution :(density of solution=1.28 g/ml for the reference substance is water(density=1 g/ml)