Ultraviolet radiation from sunlight cause the reaction that produce

In recent years, there has been an increasing incidence of floods in the plains of northern India because

Choose odd one w.r.t., features of tropical rain forest

Which of the following is capable of causing green house effect in the environment

Which one of the following is not a matching pair of certain organism(s) and the kind of association?

$I.$ Many xerophytic plants have thick cuticle on leaf epidermis and sunken stomata

$II.$ Some xerophytic plants have special photosynthetic pathway $(CAM)$ that enables their stomata close during day

$III.$ Opuntia has spines (modified leaves), photosynthetic phylloclade (stem)

$IV.$ All adaptations are genetically fixed in all organisms

Choose the combinations of correct option