Which drug is derived from a natural source and may be prescribed for the treatment of osteoporosis?

Teriparatide and  

Calcitonin

Explanation:

Teriparatide drug is extracted from the naturally occurring parathyroid hormone and is also approved by the FDA. This anabolic is taken through injection to promote the growth of bones and increase its density as well.

Along with Teriparatide, Calcitonin is a natural hromone produced by thyroid and is given to patient with osteoporosis. Calcitonin increases the bone mass and density.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !