Answer:
Principle of diminishing returns
Explanation:
In this case, Initial inputs of energy, water, fertilizer, and pesticides on high-yield crop varieties would produced high crop yields. As time goes on further adidtion of these same inputs of production would give the same or a lower yields of crops. Therefore, obeying the Principle of diminishing returns.
The cell wall<span> and the </span>central vacuole<span> help to support the plant cell and help it maintain its shape.</span>
Answer:
Tropical birds are often brightly colored and have long bills. They're omnivores that eat seeds, nuts, fruit and insects. Some tropical birds eat small lizards and animals. Parakeets also belong to exotic and tropical birds.
Answer:
B. Light
Explanation:
Light is electromagnetic wave. Electromagnetic wave is a type of wave which does not requires medium for its propagation so that's why light travel through space from sun and sound can't because sound is longitudinal wave which requires medium for its propagation. Electromagnetic wave is also called transverse waves. In transverse or electromagnetic wave, movement of oscillation is perpendicular to the direction of the wave.