Space is best associated with which of the following? a. biosphere b. exosphere c. geosphere d. cryosphere e. atmosphere f. hydrosphere only one answer.

Option (B)

Explanation:

Exosphere is the region of the upper atmosphere of earth and here the amount of air molecules is significantly less, forming a thin layer with certain amount of hydrogen and helium. This layer extends upto a height of about 10000 km and here the particles moves very rapidly, thereby the temperature at this region is relatively high. From the exosphere region the space starts and it is the region in which the artificial satellites are orbiting around the earth.

Thus the correct answer is option (B).

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

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.