Arctic, Atlantic, pacific, Indian and southern oceans.
North America, Europe, South America, Africa, Australia and Asia
Answer:
1. the Mid-Atlantic Ridge
Explanation:
The Mid-Atlantic Ridge is a mid-ocean ridge that extends into the South Atlantic Ocean between the South American and African Plates.
Alternating parallel bands of normal and reversed magnetic polarity is found here because basalt contains little magnetic particles that take on the direction of the Earth’s magnetic field at the time of eruption.
These bands are like stripes which shows up on the ocean floor when these variations are mapped.
Answer:
because many cities have tried to make their cities attractive
Answer: Ozone is considered as chief polluting gas.
Explanation:
The ozone is a ground level pollutant. It is a colorless gas. It causes irritation in the eyes and respiratory tract. It is one of the components of smog as it causes pollution in the atmosphere. It is produced by the two primary pollutants that are nitrogen oxides and volatile organic compounds when they react with the sunlight. The ozone makes the air irrespirable. It is the main cause of throat irritation, labored breath, pain in chest and also responsible for respiratory diseases. It reduces the body's ability against infection. The ozone depleting substances like aerosol, chlorofluorocarbon are widening the ozone depleting zone as halides present in these substances react with the ozone causing depletion. This allows the entry of harmful ultraviolet radiation penetrating the atmospheric layers.
Answer:Explanation:
DE is highly absorbent and will then suck the moisture away from the pest until it dies of dehydration. After coming in contact with the diatomaceous earth, fleas may die in as little as 4 hours, though it is recommended to leave the DE for up to 48 hours(2 day) to ensure its effectiveness.
It remains effective as long as it stays dry, and often takes a week or more to start killing insects. Since the insects may have laid eggs by then, leaving on the diatomaceous earth for several weeks will help prevent a rebound.