The correct answer is "The oil removed by this structure can be used to power ships."
Oil rigs are positive, effective and direct methods of recovering crude oil. It is a large construction on or in water with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for clearing and retailing.
Answer:
D -herbivore population sizes decrease ,then the carnivore population sizes decrease
C clouds
Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals
The right answer is HEPA filter.
A HEPA filter (High Efficiency on Particles Air) can filter up to 99.97% of 0.3μ aerial particles.
These filters are used to clean the air and retain suspended particles (dust, pollen, bacteria etc.) and other particles that can cause respiratory allergy in sensitive subjects.
They are very used in sterile rooms
