Hi there!
Gravity from the sun is even and makes a planet orbit the sun by exerting a force that pulls the planet towards it. Since the gravity of the sun is always the same (or very, very similar), the planet's orbit stays the same.
Hope this helps!
Answer:
1. Convection current
2. Convective heat transfer
3. The Atmosphere
4. Air pressure
Alkali: Group 1(I A). Halogens: group 17 (VII A)
Group 2 because the outer electrons ( also known as valence electrons) are 2 and that’s how we know which group it is in
Answer:
Explanation:The pH scale ranges from 0 to 14. The pH of a solution is a measure of its acidity or alkalinity (base). ... A change of one unit on the pH scale represents a change in the concentration of hydrogen ions by a factor of 10, a change in two units represents a change in the concentration of hydrogen ions by a factor of 100.
