The process of watering the crops is called irrigation.
Any two methods of irrigation are:
<h3>(i) Sprinkler system:</h3>
This system is used on the uneven land where less water is available. The perpendicular pipes, having rotating nozzles on top, are joined to the main pipeline at regular intervals. Water is allowed to flow through main pipe under pressure, which escapes from the rotating nozzles. In this way water gets sprinkled on the crop.
<h3> (ii) Drip irrigation:</h3>
This system is used to save water as it allows the water to flow drop by drop at the roots of the plants. It is the best technique for watering fruit plants, gardens and trees. Water is not wasted at all.
Ok so velocity is speed but includes direction. The formula for both speed velocity is distance over time. so the equation is 387 over 8.5. That equals 45.5294117647 which can be rounded to 46.
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Air pollution
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Answer:
Explanation:
Compounds can be classified as ionic or covalent. Molecules are the simplest unit of a covalent compound, and molecules can be represented in many different ways.
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Answer:
0.280 kg
Explanation:
m= n × MM
where
m is mass in grams
n is moles &
MM is molecular mass
The molecular mass of copper can be found on the periodic table and is 63.546.
We now have all the required information to perform the calculation
m= 4.41 × 63.546
m= 280.23786
m= 280 g
In order to convert this value to kilograms, divide by 1000
280/ 1000
= 0.280 kg
