If they rub together it can make earthquakes and cause landslides or buildings to topple.
Sexual reproduction occurs in the flower of flowering plants. Male gametes are produced in anthers of the flower and are found in pollen. Female gametes are produced in the flower’s ovary and are found in ovules.
Hope this helps
A wheelbarrow is not an example of a pully
B, proton is positive and it does not represent the symbol
