Seventy-five percent of the earth’s biomass is contained in a.)forests b.)oceans c.)grasslands d.)deserts

it is actually forests so a

a. forests

A biomass can be defined as the quantity or amount of living matter available in a given habitat. The living matter refers to the number of animals, plants and microbes present in a location that interact with each other in a food chain. The forest cover of the earth is 31% it includes diversity of living organisms not found in an other biome such as oceans, grasslands and deserts. Forests are ideal habitat that provide resources like water, shelter, food, mates and others that supports the existence of large number of lives. Therefore, Seventy-five percent of the Earth’s biomass is contained in  forests.

a physical change is being made.

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