Some of the main causes are plant growth and ice wedging.
Answer:
Diffusion and active transport.
Explanation:
Diffusion and active transport are the two types of lateral pathways that is responsible for the movement of sucrose from source cell into the sieve tube. Sugar molecules are moved into the sieve elements which are the phloem cells through active transport i.e. with the use of energy. The water produces turgor pressure in the sieve elements, which pushes the sugars and fluids down the phloem tubes toward the storage sites. it also moved through simple diffusion due to difference in concentration i.e. from higher to lower concentration region.
Answer:
The SI unit for density is: kilogram per cubic metre
<span>Viewing of the behavior of groups in a systematic way is known as sociological perspective.
Sociology views provide us with different perspectives which helps us to view social world. Sociology has three major theoretical perspectives which include functionalist perspective, symbolic interactionist perspective, and conflict perspective.
Different perspectives offer a variety of explanations on human behavior and social world.</span>
