The water repellant properties of waxes is very useful in the leaves of some plants, in the feathers of birds and also in cuticle of insects. Waxes in plant leaves reduce the amount of water that is lost by the leaves. The wax that is present in the birds' feather prevent them from getting wet with water.
Answer:A) Aquarist- Tony spends his time at work preparing feed and cleaning the tanks of the marine creatures on display. B) Marine educationist-Clayton works in a firm advising oil exploration companies about the impact of their activities.
C) Environmental consultant-Glenda runs a campaign to stop sand mining in the estuary that lies near her town.
D) Environmental lobbyist-Hazel works in a tour operating company interacting with and answering questions from tourists about the coral reefs in the Florida Keys.
Explanation:
Answer:
B. bituminous
Explanation:
Bituminous coal is an organic sedimentary rock produced by compression of peat bog material by diagenesis and submetamorphics.
Bituminous coal has low moisture and high carbon content and hence used for the production of steel and cement, coke production an electricity generation.
Coking coal is a type of Bituminous coal are best used as fuel dource in metal industry having very narrow range of volatility and plasticity. Volatility is maintained by smelters to optimize the ease of burn rate, ignition, and energy output of the coal as this determines the burn rate of the coal.
Hence, the correct option is B. bituminous.
