high school environmental science

If too many electrical appliances of high power rating (like electric iron, water heater etc) are switched on at the same time, they draw an extremely large current from the circuit. This condition is called overloading and it can cause overheating of the wiring and lead to a fire. It ca..

Question: How does gaseous exchange take place in the lower plants? Answer: In lower plants exchange of gases takes place through the general body surface as they are not highly modified or specialise..

Tides are caused due the gravitational pull of the moon on the water in oceans and seas. The enormous movement of water between the high tides and low tides provides a very large source of energy in the coastal areas of the worl..

Understanding the Chemical Properties of Acids and Bases - As acids and bases are highly corrosive and reactive substances it is important to understand their reaction and responses on substances commonly found around us. It helps us to understand the outcomes of using them in daily life...

During high tide, when the level of water in the sea is high, sea-water flows into the reservoir of the barrage and turns the turbines. The turbines then turn the generator shaft to produce electricity. During low tide, the sea-water stored in the barrage reservoir is allo..

Echolocation is a method of sensory perception by which certain animals orient themselves to their surroundings, detect obstacles, communicate with others and find food. Bats use echolocation to navigate in the dark and find food. A bat emits a series of short high-pitched ultrasonic wave..

Echolocation - Echolocation is a method of sensory perception by which certain animals orient themselves to their surroundings, detect obstacles, communicate with others and find food. Bats use echolocation to navigate in the dark and find food. A bat emits a series of short high-pitched ..

This includes the majority of chordates Head is prominent Nervous system and exoskeleton are highly developed Notochord is replaced by a jointed vertebral column Two pairs of appendages (limbs) Aquatic animals have gill..

This breed has high yield of meat and is a good egg layer...

At the time of harvesting the moisture content in grains and seeds varies from 15-35%. Besides, grains have a tendency to absorb moisture from the atmosphere. If the moisture content is high, seeds are prone to be infested with pests and this in turn will decrease their quality. Hence mo..