Answer:
The answer is true..
Yes, the presticides cause aquatic animals like fishes to die..
Answer:
The efficiency of the hair dryer is 0.2 or 20%
Explanation:
The efficiency of a machine or any appliance is a measure of the useful work done by the machine when an effort is applied to the machine. The higher the efficiency of a machine, the more useful work the machine does.
Due to the economical and environmental impact of energy production, machines and appliances of high efficiency are being developed and recommended for domestic as well as industrial use nowadays.
In electrical appliances, energy is usually supplied by electrical power units. The higher the efficiency of an electrical appliance, the less power it consumes to do useful work. For a hair dryer which takes in 3000 J of energy per second and transfers 600 J of useful heat energy, its efficiency is calculated with formula below:
efficiency = useful energy / total energy input
Efficiency = 600 J / 3000 J = 0.2
Therefore, the efficiency of the hair dryer is 0.2 or 20%
Answer:
The options:
1. "We need to discourage him from wearing eyeglasses."
2. "We need to place objects in his impaired field of vision."
3. "We need to approach him from the impaired field of vision."
4. "We need to remind him to turn his head to scan the lost visual field."
The CORRECT ANSWER IS 4.
"We need to remind him to turn his head to scan the lost visual field."
Explanation:
Homonymous hemianopsia is defined as a depletion of half of an individual visual area.
The patient with homonymous hemianopsia needs to position objects in the unimpaired area of vision, with the need for the nurse to come closer to the patient from the unimpaired area.
The nurse gives an order to the patient to make a quick view of the environment to repress the visual depletion and involving patient enlightenment from the inner region of the unimpaired area of vision.
The nurse could recommend the aid of personal eyeglasses, if the need eyeglasses are present at that time.
Answer:
Surface Irrigation involves distributing water over the surface of the soil
Sprinkler Irrigation involves use of pressurized nozzles to spray water in a shower
Variable flow irrigation involves use of advanced version of sprinkler irrigation
Trickle Irrigation involves use of emitters to control the flow of water
Sub-irrigation involves the use of perforated pipes
Explanation:
Surface Irrigation involves distributing water over the surface of the soil by allowing water to flow into the farm from irrigation channels.
Sprinkler Irrigation involves use of pressurized nozzles to spray water in a shower on the plants.
Variable flow irrigation involves use of advanced version of sprinkler irrigation. It has a variable-flow control knob on it to vary the output and flow of water. It also ensures uniform water distribution.
Trickle Irrigation involves dripping water onto the soil at very low rates through a system of tiny pipes fitted with outlets called emitters or drippers in order to control the flow of water.
Sub-irrigation involves the use of perforated pipes to apply water below the soil surface in order to raise the water-table near the plant root zone as well as to remove excess water.
Biotic organisms are a part of biotic factors that shape the ecosystem, it describes animals that consumer other animals or plants, they play a major role in helping the environment stay healthily populated in organisms and plants.
