Which examples describe how a plant might meet the challenge of getting and using energy?

a.
in a forest, trees grow tall and branches grow long to get enough sunlight.

b.
leaves on trees turn green in the spring due to increased sunlight, which allows for photosynthesis.

c.
potato plants store food in underground potatoes for use when necessary..

d.
a cactus has spines to ward off predators.

The answer is A.

In a forest, especially a rainforest, trees must grow rapidly to reach the sun at the canopy. In order to be competitive, they grow tall without as wide as trees in moderate climates.

Most trees  in these  tropical regions have straight trunks with no branches or leaves until they reach the canopy layer. Below this layer there is very little sunlight and trees have adapted to growing branches and leaves where sunlight can be obtained.

Most trees in the rainforest grow rapidly to escape the darkness of the forest floor to reach the needed sunlight of the canopy.  When a gap in the canopy appears, for example due to a fallen tree, the small trees are capable of a growth surge  in order to take advantage  of the opportunity for sunlight. 

d. china

good luck

d is the best choice

atman means 'eternal self'. the atman refers to the real self beyond ego or false self. it is often referred to as 'spirit' or 'soul' and indicates our true self or essence which underlies our existence.

there are many interesting perspectives on the self in hinduism ranging from the self as eternal servant of god to the self as being identified with god. the understanding of the self as eternal supports the idea of reincarnation in that the same eternal being can inhabit temporary bodies.

the idea of atman entails the idea of the self as a spiritual rather than material being and thus there is a strong dimension of hinduism which emphasises detachment from the material world and promotes practices such as asceticism. thus it could be said that in this world, a spiritual being, the atman, has a human experience rather than a human being having a spiritual experience.

explanation: