Answer: The correct option is A. Agriculture and Industry.
Explanation:
The primary activities are of great importance in india, it is thanks to this that india is the second largest agricultural producer in the world. India is the largest producer of many fruits, milk, spices, meats, coconuts, tea, ginger among others. It is also the second largest producer of wheat, rice, sugar and peanuts.
The indian industrial sector employs more than 100 million people. The main industries are textiles, processed foods, chemical products, transport equipment, steel, cement, petroleum, software and medicines.
A scientific theory is an explanation of the natural world on the basis of facts which have been repeatedly confirmed by experiments and observations. <span>Scientific laws are rules that explain observations through either text or mathematic forms. These laws suggest cause and effect from observations and must be repeatable.
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Therefore this would be a fact-supported scientific theory as it is an explanation based upon repeatedly confirmed experiments and observations, unlike Scientific law, which would be mathematical.
1. Crust
2. Mantle
3. Inner core
4. Outer core
Answer:
The correct option is: 2,250,000 kg
Explanation:
Given
: Area A = 1 ha (Hectare) = 10,000 m²
Bulk density = 1.5 Mg/m³ = 1.5 × 1000 kg/m³ = 1500 kg/m³ (∵ 1 Mg=1000 kg)
Depth of soil = 15 cm = 0.15 m (∵ 1 m = 100 cm)
Volume can be calculated by:
Volume = area × Depth = 10,000 m² × 0.15 m = 1500 m³
As we know, density = mass/ volume
Therefore, <u>Mass of soil</u> = Bulk density × volume = 1500 kg/m³ × 1500 m³ = 2,250,000 kg
