Please what is the answer to this question?

C. It will decrease the percentages of almond and apple crops because lesser numbers of honey bees are available for pollination.

Explanation:

The decrease in honey bees population will affect the ecosystem by decreasing the percentages of almond and apple crops which will lead to lesser numbers of honey bees available for pollination. Almonds and apple crops rely on honey bee colonies for pollination. So, a decrease in the population of honey bees will have an adverse effect on the availability of the crops and food supply. For most variety of almonds, they do not wind pollinate but require cross-pollination in order to produce nut. Other crops that rely on honey bees are watermelon, cucumbers and cherries.

you can use an oscilloscope to measure the waves from electrical signals

However a wavelength is measured from crest to crest

Explanation:

An oscilloscope is a piece of laboratory equipment used to measure waves from electrical signals