Which element is responsible for causing soil salinity ? At what concentration does the soil become saline ?

Give one example for each of the following :

$(i)$ Eurythermal plant species $ ……………..$  .

$(ii) $ A hot water spring organism $ ……………..$  .

$(iii)$ An organism seen in deep ocean trenches $ …………….$.

$(iv)$ An organism seen in compost pit $ ……………$  .

$(v)$ A parasitic angiosperm $ ……………..$  .

$(vi)$ A stenothermal plant species $ ……………..$  .

$(vii)$ Soil organism $ ……………..$  .

$(viii)$ A benthic animal $ ……………..$  .

$(ix)$ Antifreeze compound seen in antarctic fish $ ……………..$  .

$(x)$ An organism which can conform $ ……………..$  .

Smaller animals tend to lose body heat very fast as compared to larger animals because they have

Match the following:

Pneumatophores have lenticels for