I think the answer is B
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Answer:
125.6
Explanation:
Area of a circle = πr^2
Area of circle 1 = 3.14 × 11 × 11
=379.94cm^2
Area of circle 2= 3.14 × 9 ×9
=254.64cm^2
Area of a shaded region
=379.94cm^2 - 254.64cm^2
=125.60cm^2
Answer:
Yes, man has been curious about the world and his existence since the beginning, Due to this curiosity, man has always tried to solve the mystery of life. With the passage of time, the observation and discoveries of man led him to reach to all the modern advances which can be seen today in the world. Today, man has a better knowledge about his existence and the existence of life on Earth. Although a lot has yet to be discovered but we have been able to solve a lot of the mystery of the earth.
Answer:
Suspension feeding involves collecting food particles like small organisms, organic matter, detritus which are suspended in water, often using some form of filtration.
Suspension feeders catch food or organic material from the water using tentacles or spiny arms
where as
Deposit feeding involves feasting on detritus and organic matter that have settled on the ocean floor.
Deposit feeders pass sand, mud, water or sediment into their mouths using mucous-covered tentacles or arms etc.
Explanation:
