Question

c. people dont see deer as often in urban areas.
d. the deer have stopped breeding.

__5. how does the sun’s energy affect food webs on earth?
a. the infrared radiation reflected from the earth’s surface drives the carbon, oxygen, and nitrogen cycles.
b. the wavelengths of visible light stimulate plant cells to produce energy compounds by photosynthesis.
c. the ultraviolet radiation of the sun generates ozone for plants to support all life.
d. the microwaves emitted by the sun stimulate animal reproduction in the rainforest.

__6. which consequence could an exponentially growing human population have on drinkable water?
a. it could cause a decrease in needing water for survival.
b. it could cause an increase in the amount of water available for the population.
c. it could cause an increase in cases of waterborne diseases.
d. it could cause a decrease in the amount of waste and pollutants in the water supply.

__7. in the food chain below, the snake would be considered a: image of food chain with snake, eagle, grasshopper, etc.
a. tertiary consumer
b. herbivore
c. omnivore
d. tertiary producer

__8. mike wants to practice conservation and good stewardship. he has decided to examine his lifestyle in order to identify areas in which he can reduce the resources he consumes, reuse resources he already has, and recycle resources that he cannot reuse. in which of the following ways can mike best reduce the use of non - renewable resources used? (note: all are possible. which is the best use by reducing non - renewable resources used?)
a. use organic (natural) fertilizer rather than a synthetic (man - made) fertilizer in his garden.
b. ride his bike to work instead of taking his car.
c. subscribe to a daily rather than a weekly newspaper.
d. use paper grocery bags as gift wrap.

Explanation:

Question 5

• Option a: Infrared radiation reflected from Earth's surface doesn't drive carbon, oxygen, and nitrogen cycles; these cycles are driven by various biological, geological, and chemical processes, and solar energy for photosynthesis (visible light) is key for energy flow in food webs. So a is incorrect.
• Option b: Visible light wavelengths are used by plants in photosynthesis to produce glucose (energy compounds) from carbon dioxide and water, which is the base of food webs as plants are producers. This is correct.
• Option c: Ultraviolet radiation from the sun is filtered by the ozone layer, and ozone is not generated by UV radiation for plants to support life in that way. Photosynthesis is the main way sun's energy supports life in food webs. So c is incorrect.
• Option d: Microwaves from the sun don't stimulate animal reproduction in rainforests; the sun's energy for food webs is mainly through photosynthesis in plants. So d is incorrect.

• Option a: A growing human population would increase the need for water for survival, not decrease. So a is incorrect.
• Option b: An exponentially growing population would increase water demand, leading to less water available, not more. So b is incorrect.
• Option c: With more people, there's more pollution, waste, and strain on water sources, which can lead to more waterborne diseases as water quality degrades. This is a likely consequence.
• Option d: A growing population would increase waste and pollutants in water supply, not decrease. So d is incorrect.

• First, identify the food chain. Let's assume the food chain is (for example, from the image: plant → grasshopper → mouse → snake → eagle? Wait, or maybe plant → grasshopper, plant → mouse, then snake eats mouse/grasshopper? Wait, the snake's position: producers are plants. Herbivores eat plants (grasshopper, mouse if mouse eats plants). Then a snake that eats herbivores (like mouse or grasshopper) would be a secondary consumer? Wait, no, wait the options: tertiary consumer, herbivore, omnivore, tertiary producer. Wait, producers are plants (tertiary producer is wrong, producers are primary). Herbivore eats plants, omnivore eats both plants and animals. Tertiary consumer is a consumer that is at the third trophic level (after primary, secondary). Wait, let's re - examine. Let's say the food chain: Plant (producer) → Grasshopper (primary consumer, herbivore) → Mouse (secondary consumer, maybe omnivore or herbivore) → Snake (tertiary consumer) → Eagle (quaternary consumer). So snake is a tertiary consumer. Herbivore eats plants, snake doesn't eat plants. Omnivore eats plants and animals, snake is a carnivore. Tertiary producer is wrong as producers are primary. So snake is a tertiary consumer.

Answer:

b. The wavelengths of visible light stimulate plant cells to produce energy compounds by photosynthesis.

Question 6