Questions

• Cactus spines are also known as modified bud scales, which are also called modified leaves.

• Cactus spines occur in clusters in the axil of leaves.

The term Hassles refers to minor annoyances of everyday life.

Fertile alluvial soil sufficient water supply  and optimum temperatures are the reasons behind the high output of paddy here. Also known as the 'Granary of the South', it is located in Tamil Nadu.

Friend is a person with whom one has a bond of mutual affection, typically one exclusive of sexual or family relations.

Other names for friend are mate, bosom friend, classmate, buddy, ally,...

Water is the important nutrient all organisms need. Humans has almost 60% of their body weight is water. Some organisms have 90% of their body weight is of water.

There are many isotopes of uranium and all of them have same atomic number i.e, sum of nmber of neutrons and protons.