During night time hours, photosynthesis decreases due to the lack of sunlight. Which of answers BEST describes what may happen as a result. -Water will cease to flow through the vascular tissue.

-Leaves will turn yellow and wilt.

-Guard cells will close off the stomata.

-Cambium will go through a period of accelerated mitosis.

Water will cease to flow through the vascular tissue.

Explanation: During night hours, most plants switch from photosynthesis to the opposite process, respiration, in which carbon dioxide and water are produced rather than consumed.

the correct answer would be D) guard cells will close off the stomata

I chose the above answer and it was incorrect

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.

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.