Answer:
It comes from the person whoever made it
Explanation:
Explanation: If the rate of photosynthesis increases, then the number of bubbles will increase.
Answer:
D. Water is the most abundant atom in Earth’s atmosphere.
Explanation:
An atom can be defined as the smallest particle of an element (e.g., oxygen, hydrogen, etc). Water is a molecule (H2O) because its atoms are connected by molecular bonds (i.e., water is not an atom). Water is the most abundant molecule on the Earth's surface which covers more than 70 percent of the world's surface. A water molecule contains one oxygen (O) and two hydrogen (H2) atoms which are connected by covalent bonds. Water is also a compound known as a diatomic molecule, i.e., a molecule composed of two atoms of the same type.
Answer:
Read the Explanation below.
Explanation:
They could first test the density of the skeleton to see if it is real or not (bone has a different density and weight than plastic). They could also measure a sample of one part of the skeleton and see if it contains skeletal tissue (if it does, it is a from a human being).