How do conduction and convection differ?

a Conduction can move through empty space to transfer heat; convection cannot.

b Conduction does not require objects to have direct physical contact; convection does.

c Conduction requires objects to have direct physical contact; convection does not.

d Conduction transmits heat through electromagnetic waves; convection does not.

HELP ASAP/ If both crossing over and independent assortment occur during meiosis, which type of cells will result?

four genetically identical cells
four genetically different cells
two genetically identical cells
two genetically different cells

Which choice best describes the Law of Conservation of Energy? Group of answer choices Energy is lost and cannot be recovered. Energy cannot be created or destroyed. Energy cannot be transformed. Once energy is used, it cannot be used again.

HELP MEPLEASE SOMEONE REALLY REALLY REALLY SMART PLEASE
What is the mass of an atom with seven protons, seven neutrons, and eight electrons?
EXPLAIN:

The solid on the copper square after the experiment is called copper acetate. Write a word equation to represent what happened to substances in the experiment. Label the reactants and products in the equation.

Which law is represented by the description:

The bottom domino is knocked out from a stack of dominoes when an outside force is applied.

1st Law of Motion
2nd Law of Motion
Or
3rd Law of Motion

which one is a balanced equation and an unbalanced equation? picture and equation are in the picture. thanks!

A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -

A .use the sunlight to make their own food.


B. travel with other members of their species.


C.are made up of one or more cells.


D .have a skeleton that allows them to move.

Pls help me I don’t understand it’s for my science class.

Plz check if correct and tell me wether each is element or compound