Which of the following has proved helpful in preserving pollen as fossils?

Q. Pollen grains are well preserved as fossils because of the presence of which of the following?

Q. Pollen grains have been found well-preserved in fossil. Choose the statement that gives the correct explanation.

Q. Assertion: Pollen grains are well preserved as fossils.
Reason: The outer layer of pollen grains called the exine is made up of sporopollenin.

Q. Cell wall are well preserved as fossils in one of the following:

Q. Read the following statements and identify the wrong pair.

$i$. Intine of pollen grains is made up of sporopollenin
$ii$. Pollen grains are well preserved as fossils because of the presence of sporopollenin
$iii$. Enzymes can degrade the organic material of the pollen grain exine
$iv$. Sporopollenin can withstand high temperatures, strong acids and alkalis.