Which of the following is an example of biotechnology?
1.using yeast to ferment foods
2.studying the rate of growth of algae
3.using a computer program to model the shape of a virus
4.adding fertilizer to crops

Probably is A/1

Explanation:

This answer because Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields.

true is the answer : )

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave