Ao express train takes a run of 240 km at a certain speed. Another train whose speed is 12 km/h less takes an hour longer to cover the same distaltice. Find the
speed of the express train in km/hr​

the answer is definitely a

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.

answerall of the above;