Q: Where do most ecosystems get energy from? Read this paragraph and choose the correct option from the provided answers: Ecosystems need a constant input of energy to supply the needs of their organisms. Most ecosystems get energy from sunlight. A few ecosystems get energy from chemical compounds. Choices: - precipitation - forests - oceans - sunlight A:
sunlight

(Question)
Q: What can demonstrate the decrease in energy, biomass or numbers within an ecosystem? Read this paragraph and choose the correct option from the provided answers: Ecological pyramids can demonstrate the decrease in energy, biomass or numbers within an ecosystem. Energy pyramids are discussed at http://www. youtube. com/watch?v=8T2nEMzk6_E (1:44). Choices: - biomes - spontaneous mutation - food chains - ecological pyramids A:
(Answer)
ecological pyramids

Ques: Q: Photosynthesis changes light energy to what type of energy? Read this paragraph and choose the correct option from the provided answers: Photosynthesis changes light energy to chemical energy. The chemical energy is stored in the bonds of glucose molecules. Glucose is used for energy by the cells of almost all living things. Plants make their own glucose. Other organisms get glucose by consuming plants (or organisms that consume plants). How do living things get energy from glucose? The answer is cellular respiration. Choices: - radiation - potential - solar - chemical A:
Ans: chemical

(Q).
Q: New seafloor forms when what object cools? Read this paragraph and choose the correct option from the provided answers: The seafloor spreading hypothesis brought all of these observations together in the early 1960s. Hot mantle material rises up at mid-ocean ridges. The hot magma erupts as lava. The lava cools to form new seafloor. Later, more lava erupts at the ridge. The new lava pushes the seafloor that is at the ridge horizontally away from ridge axis. The seafloor moves!. Choices: - ash - debris - rain - lava A:
(A).
lava

Ques:Q: In a transverse wave, the highest point the wave reaches is known as the? Read this paragraph and choose the correct option from the provided answers: In a transverse wave, particles of the medium move up and down at right angles to the direction of the wave. Wave amplitude of a transverse wave is the difference in height between the crest and the resting position. The crest is the highest point particles of the medium reach. The higher the crests are, the greater the amplitude of the wave. Choices: - flow - valley - axis - crest A:

Ans:crest

Q: Electromagnetic specturm is the full spectrum of raidant energy, which is energy emitted and transmitted as what? Read this paragraph and choose the correct option from the provided answers: The noble gases are characterized by their high ionization energies and low electron affinities. Choices: - currents - flows - tides - waves A:
waves