Biosphere- protect habitats
Atmosphere- reduce auto emissions
Hydrosphere- reduce,reuse,recycle
Geosphere- limit fertilizer
1. The cell wall has lignin (hard substance): to prevent the xylem vessel from collapsing and withstand high pressure.
2. The absence of protoplasm (nucleus + cytoplasm) and cross wall: to allow water to move through the lumen easily.
Hope it helped!
<span>The elements that are found in a high proportion in Earth's crust are oxygen, aluminium, iron, calcium, potassium, sodium, and magnesium. But for your Option, I think it is B) Oxygen and Silicon. This is because Oxygen makes 46.6% while Silicon makes 27.7% of the Earth crust.</span>
Answer:
what is the question? what do you need to solve for?
The answer would be : <span>both ethnologists and comparative behaviorists were correct.
Hope this helps !
Photon</span>
