Earth's Tilt and Precession Quiz

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What effect does a greater tilt of the Earth's axis have on the severity of seasons?

Cooler summers and milder winters

Hotter summers and warmer winters

Unchanged seasons throughout the year

Warmer summers and colder winters (correct)

What is the cause of Earth's wobbling motion known as axial precession?

Changes in the Earth's magnetic field

Gravitational influences of the Sun and Moon (correct)

Atmospheric pressure changes

Tidal forces caused by ocean currents

What argument is commonly used as an objection to the carbon dioxide theory?

Increased water vapor absorption would offset any change in carbon dioxide concentration (correct)

Carbon dioxide has minimal impact on atmospheric temperature

Carbon dioxide has a negligible effect on outgoing radiation

Increased carbon dioxide concentration leads to a decrease in atmospheric opacity

What is one of the current adult stem cell therapies mentioned in the text?

Bone marrow transplants for leukemia Signup and view all the answers

Which of the following is NOT mentioned as a factor contributing to water pollution in the Philippines?

Deforestation Signup and view all the answers

What is one of the main health risks associated with high levels of air pollution in urban areas in the Philippines?

Increased risk of cancer Signup and view all the answers

Why is the Philippines highly vulnerable to the impacts of climate change?

Rising sea levels Signup and view all the answers

What is the main difference between symmetric and asymmetric division of stem cells?

Symmetric division produces two identical daughter cells with stem cell properties, while asymmetric division produces one stem cell and one progenitor cell with limited self-renewal potential. Signup and view all the answers

Which type of mammalian stem cell is derived from blastocysts?

Embryonic stem cells Signup and view all the answers

What are the essential characteristics of stem cells?

Ability to differentiate into a diverse range of specialized cell types and ability to renew themselves through mitotic cell division. Signup and view all the answers