Podcast
Questions and Answers
What is the main reason why the diameter at the poles is approximately 70 km less than at the equator?
What is the main reason why the diameter at the poles is approximately 70 km less than at the equator?
- The gravitational pull of the moon and sun
- The earth's rapid rotation on its axis (correct)
- The tilt of the earth's axis
- The earth's one-year revolution around the sun
What causes high tides along ocean shores about twice a day?
What causes high tides along ocean shores about twice a day?
- The gravitational pull of the moon and sun (correct)
- The tilt of the earth's axis
- The rotation of the planet on its axis
- The earth's one-year revolution around the sun
What produces seasonal variations in climate on earth's surface?
What produces seasonal variations in climate on earth's surface?
- The distance of the earth from the sun
- The tilt of the earth's axis (correct)
- The rapid rotation of the earth on its axis
- The earth's one-year revolution around the sun
What ensures that energy reaches the planet at a rate sufficient to sustain life?
What ensures that energy reaches the planet at a rate sufficient to sustain life?
What is the fundamental unit of life according to the Cellular Theory of Life?
What is the fundamental unit of life according to the Cellular Theory of Life?
Which elements coalesced to form stars in our galaxy?
Which elements coalesced to form stars in our galaxy?
What is the function of chloroplasts in plant cells?
What is the function of chloroplasts in plant cells?
What do space probes send back from distant planets in our solar system?
What do space probes send back from distant planets in our solar system?
What provides form and structure for the cell and permits inward passage of waste products?
What provides form and structure for the cell and permits inward passage of waste products?
What type of organisms are bacterium, amoeba, and paramecium according to the Cellular Theory of Life?
What type of organisms are bacterium, amoeba, and paramecium according to the Cellular Theory of Life?
What are the smaller bodies or rock and ice orbiting the sun called?
What are the smaller bodies or rock and ice orbiting the sun called?
What are the two lightest elements that stars coalesced out of?
What are the two lightest elements that stars coalesced out of?
What is made up of genes, which are in turn made of DNA?
What is made up of genes, which are in turn made of DNA?
What do radio and x-ray telescopes use to collect information from space?
What do radio and x-ray telescopes use to collect information from space?
What contains organelles such as mitochondria and chloroplasts?
What contains organelles such as mitochondria and chloroplasts?
What is used in making food within plant cells?
What is used in making food within plant cells?
What are the two ways in which reproduction occurs?
What are the two ways in which reproduction occurs?
What are chromosomes made of?
What are chromosomes made of?
How many genes determine each trait?
How many genes determine each trait?
What is the basic principle of evolution?
What is the basic principle of evolution?
What is the study of the interactions of organisms with their environment and with each other called?
What is the study of the interactions of organisms with their environment and with each other called?
What is the basic unit of ecological study?
What is the basic unit of ecological study?
How is energy primarily transmitted through an ecosystem?
How is energy primarily transmitted through an ecosystem?
What are the sources of all food in an ecosystem?
What are the sources of all food in an ecosystem?
How do animals contribute to the recycling of organic matter and nutrients within an ecosystem?
How do animals contribute to the recycling of organic matter and nutrients within an ecosystem?
What may upset the balance in ecosystems according to the text?
What may upset the balance in ecosystems according to the text?
What may increased levels of carbon dioxide cause?
What may increased levels of carbon dioxide cause?
What do microorganisms recycle within an ecosystem?
What do microorganisms recycle within an ecosystem?
What is responsible for the phases of the moon?
What is responsible for the phases of the moon?
What process results in the formation of winds and ocean currents?
What process results in the formation of winds and ocean currents?
What plays an important part in determining climatic patterns?
What plays an important part in determining climatic patterns?
Where is fresh water obtained from for daily life and industrial processes?
Where is fresh water obtained from for daily life and industrial processes?
What has a finite capacity to withstand change without generating major ecological alterations?
What has a finite capacity to withstand change without generating major ecological alterations?
What is a result of weathering and erosion by rivers and streams?
What is a result of weathering and erosion by rivers and streams?
What has led to a dramatic increase in atmospheric carbon dioxide?
What has led to a dramatic increase in atmospheric carbon dioxide?
What interacts chemically with the atmosphere and produces undesirable effects such as smog and acid rain?
What interacts chemically with the atmosphere and produces undesirable effects such as smog and acid rain?
What causes continuous changes on the earth's surface?
What causes continuous changes on the earth's surface?
What is the theory responsible for the current position of continents on the globe?
What is the theory responsible for the current position of continents on the globe?
What process refers to moving weathered materials?
What process refers to moving weathered materials?
What is our sun in comparison to other stars in the universe?
What is our sun in comparison to other stars in the universe?
What are the values and attitudes strongly fostered by science?
What are the values and attitudes strongly fostered by science?
What is one of the main challenges related to the disposal of used materials, according to the text?
What is one of the main challenges related to the disposal of used materials, according to the text?
Which technological system involves the use and development of materials to achieve a desired result, such as construction, preservation, and recycling?
Which technological system involves the use and development of materials to achieve a desired result, such as construction, preservation, and recycling?
What is an example of the success of genetic engineering mentioned in the text?
What is an example of the success of genetic engineering mentioned in the text?
Which technology requires less direct labor but more engineering, computer programming, and quality control?
Which technology requires less direct labor but more engineering, computer programming, and quality control?
What has made possible the encoding and transmitting of information as pulses in light intensity over optical fibers?
What has made possible the encoding and transmitting of information as pulses in light intensity over optical fibers?
What does biotechnology involve?
What does biotechnology involve?
What does process technology include?
What does process technology include?
What does electronic/control technology involve?
What does electronic/control technology involve?
What has the widespread use of insecticides, herbicides, and fungicides greatly increased?
What has the widespread use of insecticides, herbicides, and fungicides greatly increased?
What could be returned safely to the environment according to the text?
What could be returned safely to the environment according to the text?
What are robots used for according to the text?
What are robots used for according to the text?
What is the main purpose of using instructions for processing in information technology?
What is the main purpose of using instructions for processing in information technology?
How can computers provide control in certain operations compared to human control?
How can computers provide control in certain operations compared to human control?
What are the risks associated with computer-managed information systems?
What are the risks associated with computer-managed information systems?
What is the main focus of health technology?
What is the main focus of health technology?
Which measure is included in sanitation measures as part of health technology?
Which measure is included in sanitation measures as part of health technology?
What is the most effective means of preventing early death from disease according to the text?
What is the most effective means of preventing early death from disease according to the text?
How does modern treatment of many diseases benefit from science-based technologies?
How does modern treatment of many diseases benefit from science-based technologies?
What ethical and economic issues are raised by improved medical technologies according to the text?
What ethical and economic issues are raised by improved medical technologies according to the text?
How has knowledge of chemistry improved modern treatment of many diseases?
How has knowledge of chemistry improved modern treatment of many diseases?
What is an example of a technological alternative to traditional surgical methods?
What is an example of a technological alternative to traditional surgical methods?
What challenges are increased by the combined results of improved technology in public health, medicine, and agriculture?
What challenges are increased by the combined results of improved technology in public health, medicine, and agriculture?
What is the process by which green plants manufacture their own food in the presence of light?
What is the process by which green plants manufacture their own food in the presence of light?
Which of the following are the products of photosynthesis?
Which of the following are the products of photosynthesis?
What are the basic functions of all animals?
What are the basic functions of all animals?
Which organ provides anchorage for the plant and absorbs water and nutrition from the soil?
Which organ provides anchorage for the plant and absorbs water and nutrition from the soil?
What is the male reproductive organ of a flower?
What is the male reproductive organ of a flower?
Which system is adapted for extracting required oxygen either from the air or from water and removing carbon dioxide?
Which system is adapted for extracting required oxygen either from the air or from water and removing carbon dioxide?
What type of cells reproduce by mitosis?
What type of cells reproduce by mitosis?
What is the process called when pollen nuclei join the ovule nuclei in a flower?
What is the process called when pollen nuclei join the ovule nuclei in a flower?
Which cells produce two new cells with half the number of chromosomes as the parent cell?
Which cells produce two new cells with half the number of chromosomes as the parent cell?
Geotropism refers to plants' response to which factor?
Geotropism refers to plants' response to which factor?
What is the main purpose of conducting an experiment?
What is the main purpose of conducting an experiment?
What is the role of a manipulated variable in an experiment?
What is the role of a manipulated variable in an experiment?
Why is it important to control fixed variables in an experiment?
Why is it important to control fixed variables in an experiment?
What is a hypothesis in scientific investigation?
What is a hypothesis in scientific investigation?
How are results of an experiment typically presented?
How are results of an experiment typically presented?
What are some of the values and attitudes exhibited by a scientist?
What are some of the values and attitudes exhibited by a scientist?
What does a responding variable refer to in an experiment?
What does a responding variable refer to in an experiment?
How can one conduct a fair test in an experiment?
How can one conduct a fair test in an experiment?
