Q3.Many plants in the desert are seen to have long roots that grow very deep into the ground - sometimes as long as 2-3 times the plant's height. Which of the following is the MOST LIKELY reason why those plants have long roots?
1 to allow them to store more food
2 to draw water from deep below the surface
3 to fix them firmly to the sand to withstand desert storms
4 to help them grow back if the part above the ground is cut