Which two statements are true regarding an energy pyramid

This is an ecosystem energy pyramid that illustrates how much energy is found at each trophic level of a food chain. Select all the statements about this pyramid that are TRUE.

Approximately 90% of energy from one trophic level is transferred to the next trophic level.

Looking at the total amount of energy in an ecosystem, most energy can be found in the primary consumers.

This energy pyramid explains why there are few tertiary consumers in most ecosystems.

Looking at the total amount of energy in an ecosystem, most energy can be found in the producers.

They must use the scientific method