1. Geothermal energy and hydropower are V.

trench
examples of renewable resources because: a. I, II, and IV only
a. they are sourced from nature. b. I, II, and III only
b. they can be replenished within human c. I and II only
life span.
d. IV and V only
c. they can sustain electricity to the
community. 6. Geothermal energy comes from deep
d. they never harm the environment. inside the earth due to:
a. slow decay of radioactive particles in the
2. The Philippines is one of the world's top earth's core.
producers of geothermal power. This is
because the country: b. friction between tectonic plates.
a. is abundant in natural gas. c. rotation of the earth in its axis.
b. is located along the Pacific Ring of Fire. d. absorption of solar energy.
c. has many rocky and high mountains.
d. has numerous streams and rivers 7. The following are uses of geothermal
energy EXCEPT:
3. Analogy: Heat pump: 50 – 60 oF; a. bathing
__________ : 300 – 700 oF
b. heating
a. Dry Steam Plants
c. milling
b. Flash Steam Plants
d. power generating
c. Binary Cycle Plants
d. All of the above 8. Which of the following is NOT true about
the impact of geothermal energy resource
4. At a geothermal power plant, wells are to the environment?
drilled 1 or 2 miles deep into the Earth. a. Geothermal power plants do not burn
How does it work? fuel to generate electricity, so the levels of
I. The cooled water is pumped back into the air pollutants they emit are low.
Earth to begin the process again. (5) b. Geothermal features in national parks,
such as geysers and fumaroles, making the
II. When the water reaches the surface, the
site promotes sustainability.
pressure is dropped, which causes the
water to turn into steam. (2) c. Most geothermal power plants inject the
geothermal steam and water that they use
III. Hot water is pumped from deep back into the earth for recycling purposes.
underground through a well under high
pressure. (1) d. The construction of geothermal power
plants destroys natural habitat disrupting
IV. The steam cools off in a cooling tower ecological niche.
and condenses back to water. (4)
V. The steam spins a turbine, which is 9. People have a long history of using the
connected to a generator that produces force of water flowing in streams and rivers
electricity. (3) to produce mechanical energy for
a. III – II – V – IV – I a. milling
b. III – V – II – IV – I b. cutting
c. III – II – IV – V – I c. sewing
d. III – IV – II – V – I d. molding

5. Which of the following is NOT a geologic 10. Which of the following are factors in
indicator for building geothermal power generating hydropower?
plant? I. Amount of precipitation
I. volcano II. Height of the source
II. geyser III. Density of substance
IV. Steepness of slope
III. hot spring
a. I, II and III only
IV. rocky mountain
b. II, III, and IV only
c. I and II only c. It is the color of the planet that is
d. I, II, III and IV displayed by reflecting heat from the sun.
d. It appears to have a blue tint when seen
11. Which of the following types of from space due to the color of the sky.
hydropower relies more on the natural
water flow rates, diverting just a portion of 2. Most of the water on Earth is ______.
river water through turbines, sometimes a. freshwater c. wet water
without the use of a dam or reservoirs? b. saltwater d. lake water
a. Impoundment facilities
3. How much water is there on Earth?
b. Pumped storage system a. 75% c. 71% b. 73% d. 70%
c. Run-of-river facilities
d. All of the above 4. Where does Earth’s freshwater come
from?
12. Hydropower plants are completely free a. seas c. in icecaps and glaciers
of greenhouse gas emission. The statement b. in storage tanks d. ocean tides and
is: waves
a. True, because hydropower is a
renewable energy resource. 5. The following are kinds of water that are
needed for agricultural purposes EXCEPT
b. True, because power generation is __________.
dependent on water cycle only. a. rainwater c. ground water
c. False, because carbon gas emission b. saline water d. surface water
occurs during construction.
d. False, because the energy conversion 6. Water from a river, lake or freshwater
depletes the oxygen content of the water. wetland is called?
a. saltwater c. groundwater
13. Hydropower is largely dependent on b. freshwater d. surface water
a. Carbon Cycle
7. Which of the following statements is true
b. Nitrogen Cycle
or false?
c. Water Cycle I. Fresh water includes water in ice caps,
d. Nutrient Cycle glaciers, ponds, lakes, rivers, streams, and
underground water.
14. Assessing the impact of plants, which of II. Freshwater is more plentiful than
the following is TRUE about geothermal and groundwater.
hydropower in terms of environmental III. Groundwater is more abundant than
concerns? freshwater.
a. Geothermal is more environment friendly
than hydropower plant. a. Statements I and II are true. c. Only
statement I is true.
b. Hydropower is more environment
b. Statements I and III are true. d. Only
friendly than geothermal plant.
statement II is false.
c. Both geothermal and hydropower plants
are environment friendly. 8. Water sources found present on the
d. The impact of the power plants to the surface of the earth in the form of oceans,
environment depends on the situation. rivers, lakes, ponds and streams are called?
a. rain water c. surface water
15. Both geothermal and hydropower b. fresh water d. underground water
plants require
a. Turbine 9. The following are reasons for water
b. Generator reduction EXCEPT __________.
a. overuse c. drying up of wells
c. Transformer b. too much rain d. pollution on water
d. All of the above resources
10. Water that is collected on Earth in the
form of surface water and underground
1. Why is Earth known as the blue planet? water is called?
a. It appears bright blue from space a. rain water c. water vapor
because it is covered with water. b. lake water d. ground water
b. It is the color of the planet that is
displayed after absorbing sunlight.
11. Which of the following is NOT a type of 5. The entire body of saltwater that covers
groundwater? about 71% of Earth is _____.
a. spring c. infiltration a. lake c. stream b. ocean d. wetland
b. stream d. open well
6. These are water found in rivers, glaciers,
12. In what form is surface water mostly ice sheets and underground that contains
found on Earth? little to zero salt.
a. river c. stream a. ocean c. salt water b. glaciers c. fresh
b. lake d. water vapor water

13. Which of the following is NOT a surface 7. What percent of Earth’s water is
water? freshwater? a. 3% c. 70% b. 79% d. 97%
a. lake c. river
b. spring d. pond 8. Water that is collected on Earth in the
form of surface and ground water is called
14. Which is NOT an activity that _____.
demonstrates conservation of fresh water? a. rain water c. fresh water
a. Take shorter showers. b. water vapor d. ground water
b. Check toilet leaks.
c. Install water-saving shower heads. 9. Which of the following is a source of
d. Leave the water running while brushing water from the ground?
your teeth. a. lake c. aquifer
b. rainfall d. reservoir
15. Which of the following statements is
true or false? 10. Sources of water that are in the form of
I. Water nourishes cell and removes waste rivers, lakes and swamps.
it generates. a. rain water c. surface water
II. Human body is 70% water. b. fresh water d. underground water
III. Water is essential to home and factories.
a. Statements I and II are true. 11. It is a manmade source of water that is
b. Statement II is false. manually operated pump and widely used
c. Statement III is true. for a variety of industrial, marine, irrigation
d. All statements are true. and leisure activities.
a. dam c. tube well
b. canal d. hand pump
1. Which of the following statements is NOT
true? 12. Which of the following is a way to
a. Fresh water is a non-renewable resource. conserve water?
b. Surface water is water in a river, lake or a. Use hose to wash car.
freshwater wetland. b. Check faucet and pipes for leak.
c. 97% of the water on Earth is salt water c. Leave the tap water running while
and only 3% is fresh water. brushing your teeth.
d. Groundwater is fresh water located in d. Leave the shower flowing while you
the subsurface pore space of soil and rocks. shampoo your hair.

2. Most of the water on Earth is __________. 13. Why do we need to conserve water?
a. saltwater c. freshwater a. It is a limited resource.
b. dam water d. lake water b. It is a renewable source.
c. It is a non-renewable source.
3. It consists about 68% of freshwater on d. There is no need to conserve water.
Earth.
a. river c. groundwater 14. Which of the following is a type of water
b. swamp d. icecap and glacier pollution?
a. oil spill b. fish waste
4. Why is surface water the most important c. sand from beaches d. people swimming
water resource? from the ocean
a. It is rich in minerals.
b. It is often readily accessible. 15. The following are ways you can protect
c. It is clearer than the ground water. the water resources EXCEPT _____.
d. It is a small channel of water that
eventually runs into a river. a. Handle and dispose waste properly.
b. Pour leftover water onto the garden.
c. Practice water conservation at home and
in school. 8. In the XYZ power plant, dissolution of
d. Don’t mind water leaks in school’s radioactive nuclides is processed and
comfort room anyway you’re not paying the filtered to the atmosphere. What type of
bill waste is being generated by the power
plant?
1. Which of these terms refer to the A. biomedical waste
unwanted substances needed to disposed? B. gaseous waste
A. compost C. liquid waste
B. plastic D. solid waste
C. solid waste
D. waste 9. Substances that are unsafe to use
commercially are considered hazardous.
2. Approximately, how many years does it Which of the following is NOT a property of
take for a plastic bottle to break down? hazardous waste?
A. 150 A. corrosive
B. 450 B. malleable
C. 700 C. reactive
D. 1000 D. toxic

3. Containers, jars and bottles are 10. When classifying waste at home, Jana
examples of what type of waste? knows that ______________ is a solid waste
A. hazardous waste and ________________ is a liquid waste.
B. liquid waste A. bottle, detergent
C. organic waste B. can, plastic bag
D. solid waste C. bottle, tin can
D. egg shell, steel
4. Which of the following is an example of
hazardous waste? 11. What type of waste is commonly found
A. bottle in coastal and estuarine areas?
B. batteries A. E-waste
C. meat B. fishery waste
D. paper C. municipal waste
D. radioactive waste
5. Farmers regularly used pesticides in their
farms; they considered pesticides as what 12. What is E-waste?
type of waste? A. eco-friendly waste
A. agricultural waste B. hazardous chemical waste
B. fishery waste C. obsolete electronically waste
C. industrial waste D. waste from nuclear power plant
D. municipal waste
13. In times of Covid-19 pandemic, many
6. Jose is an advocate of proper waste people used facemasks to protect
disposal and encourages other students to themselves. As a responsible citizen,
practice recycling. Will you help Jose disposable facemasks should be put in a
identify which of the following items can be ___________________ container.
recycled? A. hazardous waste
A. aluminum cans B. liquid waste
B. card boards C. organic waste
C. paper cups D. solid waste
D. All of the above
14. Dealing with waste management is a
7. People in the community strictly followed very important task because of the
the local government ordinances when it ___________________.
comes to waste management. Which color A. infrastructure consideration
of garbage bag do they use for non- B. large volume of waste produced in the
recyclable waste? community
A. black C. environmental pollution
B. blue D. all of the above
C. green 15. Which is the appropriate definition of
D. yellow hazardous waste?
A. Only liquid wastes that is considered
toxic and chemically reactive 8. Which of these groups of people
B. Only solid waste that is considered toxic contribute a lot in the production of waste?
and chemically reactive A. People in urban places
C. Any solid, liquid or gaseous waste that is B. People in rural areas
considered toxic and chemically reactive C. People lives in the mountain
D. Only gaseous waste that is considered D. People in a faraway island
toxic and chemically reactive
9. When waste materials are corrosive,
1. What methods of waste disposal are chemically reactive, and flammable, they
approved by the Philippine Republic Act are considered ____________.
9003? A. Biomedical waste
A. attenuation and composting B. Biodegradable waste
B. incineration and pyrolysis C. Hazardous waste
C. landfills and 3 Rs D. Non-biodegradable waste
D. incineration and burning
10. Which of these practices adhere to the
2. Paints, solvents, and cleaning agents are 3Rs waste management?
examples of ________ A. Using disposable paper plates
A. hazard waste B. Using aluminum foil for food
B. liquid waste C. Using zip lock bag for sandwiches
C. organic waste D. Using dish cloth in the kitchen
D. solid waste
11. Wash water and rain are classified as
3. Which of the following is an improper liquid waste, while carbon dioxide and
way of disposing waste materials? carbon monoxide are gaseous waste.
A. recycling and reusing waste materials A. The first statement is true while the
B. using waste food to make compost second is false.
C. burying waste materials in landfills B. The first statement is false while the
D. burning rubbish in the open second is true.
C. Both statements are true.
4. Which type of waste includes viscera, D. Both statements are false.
scales, and fish bones?
A. agricultural 12. Approximately, how many kilograms of
B. biomedical waste are produced by an individual in the
C. fishery waste country per day?
D. municipal solid waste A. 1 kg
B. 1.5 kg
5. Which of these places contribute a lot to C. 0.5 kg
the country’s waste? D. 0.7 kg
A. Region I
B. Region III 13. Which groups of wastes belong to
C. Region IV industrial waste?
D. National Capital Region A. coal, petroleum, metals
B. old CPU and flash drive
6. Maria religiously practices segregation of C. radio isotopes and chemical sludge
waste at home. Which of these is D. woods, manure, papers
CORRECTLY done by Maria?
A. animal manure has its own septic tank 14. When classifying waste at home, Jerry
B. burning of organic waste knows that ______________ is a liquid waste
C. use the seashore as dumpsite and ________________ is a solid waste.
D. throwing tin cans in the river A. bottle, detergent
B. can, plastic bag
7. Mrs. De Chavez plans to renovate her C. detergent, paper towel
ancestral house. She knows that D. egg shell, ceramic vase
construction and demolition debris can be
collected by the local garbage collectors 15. Carlos regularly used compost in his
because ________________. vegetable farm; he considered compost as
A. It is municipal solid waste. what type of waste?
B. It is an organic waste. A. agricultural waste
C. It can be burned. B. non-biodegradable waste
D. It is non-recyclable. C. organic waste
D. radioactive waste