Which is an example of physical weathering?

a) acid rain breaking down compounds in rock statues
b) bits of iron in rock rusting when exposed to oxygen and water
c) oxygen interacting with minerals in rock
d) rock breaking apart when it falls from a cliff

a) acid rain breaking down compounds is rock statues

Explanation:

the backbone of the dna and rna compound is sugar phosphate.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).