One of the forces that keeps the Earth's crust in a continual state of change and growth is heat from inside the lower mantle and outer core. This heat is transferred by . radiation
conduction
s-waves
convection currents

c is the answer : )               your welcome

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

the answer is :

i dont know it at allnow im just getting points at this pint