What is the last element to fuse in a low mass star? Over its lifetime, a low mass star consumes its core hydrogen and converts it into helium. The core shrinks and heats up gradually and the star gradually becomes more luminous. Eventually nuclear fusion exhausts all the hydrogen in the star’s core. Will our […]
Why do cells multiply?
What can cause a substance to change phase?
What can cause a substance to change phase? Substances can change phase—often because of a temperature change. At low temperatures, most substances are solid; as the temperature increases, they become liquid; at higher temperatures still, they become gaseous. The process of a solid becoming a liquid is called melting. What are the disadvantages of phase […]
Which joint is more stable hip or knee?
Which joint is more stable hip or knee? The hip joint is a ball-and-socket joint whose motions are more restricted than at the shoulder to provide greater stability during weight bearing. The hip joint is the articulation between the head of the femur and the acetabulum of the hip bone. The knee includes three articulations. […]
What are the 4 states of mind?
What are the 4 states of mind? When you combine the types of focus (internal and external) with the ways we focus (helpful and harmful) you get four distinct states of mind: autopilot, critical, thinking, and engaged. We want to be in the helpful states. What are the four altered states of consciousness? However, there […]
Who is the longest river in Asia?
Who is the longest river in Asia? Yangtze River What is the most important river in Asia? Yangtze What are the 3 major rivers in South Asia? The major rivers in South Asia are the Ganges, the Indus, and the Brahmaputra Rivers. The Ganges River flows across northern India into Bangladesh. The Brahmaputra flows through […]
What would happen if there was no cell membrane?
Is it OK to shower in the rain?
Which radiation is hardest to detect?
Which radiation is hardest to detect? beta radiation Which type of radiation is blocked by the skin but is the most dangerous? Beta particles What kind of radiation is harmful? Gamma rays are the most harmful external hazard. Beta particles can partially penetrate skin, causing “beta burns”. Alpha particles cannot penetrate intact skin. Gamma and […]