GDP is defined as Select one:
a. total resource income less
taxes, saving, and spending on
exports.
b. the monetary value of all
goods and services (final,
intermediate, and non-market)
produced in a given year.
c. the market value of all final
goods and services produced
within a nation in a specific year
d. the economic value of all economic resources used in the
production of a year's output

= the market value of all final
goods and services produced
within a nation in a specific year

C:  the market value of all final

goods and services produced

within a nation in a specific year

Explanation: Hope that helps

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 !

within 30 of the equator hope this