Author Question: All ecosystems must have a flow of energy to thrive. What are the three basic categories of these ... (Read 56 times)

Bernana · **on:** Aug 22, 2018

All ecosystems must have a flow of energy to thrive. What are the three basic categories of these organisms?

a) algae, bacteria, mangroves
b) producers, consumers, decomposers
c) bacteria, virus, algae
d) zooplankton, phytoplankton, fish
e) omnivores, carnivores, herbivores

Question 2

What causes the greenhouse effect?

a) Atmospheric gases, such as carbon dioxide, absorb sunlight, causing the atmosphere to heat up.
b) The oceans absorb solar energy and trap heat, making the Earth warmer.
c) Greenhouse gases lead to polar ice cap melting, making the Earth warmer.
d) Sunlight is absorbed by the Earth's surface, reradiated as infrared energy, and absorbed by atmospheric gases.
e) Greenhouse gases absorb ozone, leaving the Earth unprotected from ultraviolet radiation.