Q: Answer the following question given this paragraph: Solar Dependence and Food Production Some organisms can carry out photosynthesis, whereas others cannot. An autotroph is an organism that can produce its own food. The Greek roots of the word autotroph mean "self" (auto) "feeder" (troph). Plants are the best-known autotrophs, but others exist, including certain types of bacteria and algae (Figure 5.2). Oceanic algae contribute enormous quantities of food and oxygen to global food chains. Plants are also photoautotrophs, a type of autotroph that uses sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates. All organisms carrying out photosynthesis require sunlight. Q: What living things are considered photoautotrophs because they use sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates? A:

OPTIONS:
- protazoa
- bacteria
- moulds
- plants

A: plants

Q: Answer the following question given this paragraph: Shield volcanoes often form along divergent plate boundaries. They also form at hotspots, like Hawaii. Shield volcano eruptions are non-explosive. Q: What kind of volcanoes often form along divergent plate boundaries? A:

OPTIONS:
- composite
- dome
- crest
- shield

A: shield

Q: Answer the following question given this paragraph: For all collisions in a closed system, momentum is conserved. In some collisions in a closed system, kinetic energy is conserved. When both momentum and kinetic energy are conserved, the collision is called an elastic collision. Most collisions are inelastic because some amount of kinetic energy is converted to potential energy, usually by raising one of the objects higher (increasing gravitation PE) or by flexing the object. Any denting or other changing of shape by one of the objects will also be accompanied by a loss of kinetic energy. The only commonly seen elastic collisions are those between billiard balls or ball bearings, because these balls do not compress. And, of course, collisions between molecules are elastic if no damage is done to the molecules. Q: When both momentum and kinetic energy are conserved in a closed system, the collision is called what? A:

OPTIONS:
- a static collision
- a spontaneous collision
- an accidental collision
- an elastic collision

A: an elastic collision

Q: Answer the following question given this paragraph: Energy from the Sun has a wide range of wavelengths. The total range of energy is called the electromagnetic spectrum . You can see it in Figure below . Q: Energy from the sun has a wide range of wavelengths.what is the total range of energy called? A:

OPTIONS:
- heat spectrum
- light spectrum
- thermal spectrum
- electromagnetic spectrum

A:
electromagnetic spectrum