Which one of the following is not a condensation polymer?

The tides whose height is 20 percent more than normal tide are called?

Which of the following statements about tropical cyclone are correct?

1) It originates and develops over warm oceanic surface.
2) Presence of Coriolis force is necessary for it.
3) It occurs in middle latitudinal region.
4) It develops ‘eye’ with calm and descending air condition.
Select the correct answer using the code given below.

Which of the following statements about biodiversity hot spots is/are correct?

1) Biodiversity hot spots are identified by the International Union for Conservation of Nature and Natural Resources (IUCN).
2) Biodiversity hot spots are defined according to their vegetation.
3) In India, Eastern Ghats and Western Himalaya are the biodiversity hot spots.
Select the correct answer using the code given below.

Which one of the following is not an igneous rock?