Flower color in snapdragons is an example of incomplete dominance. when a red-flowered plant is crossed with a white-flowered plant, the offspring have pink flowers. if a pink-flowered plant is crossed with another pink-flowered plant, their offspring will

25% red flowered

25% white flowered

50% pink flowered

Explanation:

Let the red flower color be represented by RR, the white color by rr.

When RR was crossed with rr, the offspring had pink flowers;

RR   x   rr = Rr, Rr, Rr, Rr (Pink color)

Crossing Rr with another Rr

Rr   x   Rr  = RR, Rr, Rr, rr

RR = red

Rr = pink

rr = white

Hence, if a pink flowered plant is crossed with another pink flowered plant, 25% of their offspring will be red, 25% will be white and 50% will be pink.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.