What is the missing first step of the following process:  -  Your stomach digests the food - Sugars from food enter your bloodstream - Insulin helps turn sugars into energy - Insulin helps your body store the energy in fat, muscle and liver cells -
Ans: You eat food

What is the missing first step of the following process:  -  The caterpillar eats constantly until it grows bigger - The caterpillar starts to form a cocoon around itself - The caterpillar becomes a pupa - After some time the cocoon hatches - And a butterfly is born.
Ans: A larva is born

What is the missing first step of the following process:  -  Air is transported to the lungs - Air reaches the alveoli, the smallest air sacs in the lungs - In the alveoli, air passes into the blood within small capillaries - The gaseous oxygen in the air dissolves into the capillary blood - The dissolved oxygen is picked-up by red blood cells - The red blood cells bind the oxygen via a protein called heme - Red blood cells circulate throughout the body and reach the various tissues - Within small capillaries, the heme release the oxygen - The oxygen can then reach the cells within the tissue -
Ans: The human body takes a breath inward

What is the missing first step of the following process:  -  Some scientists believe that releasing too much carbon dioxide into the atmosphere is one of the causes of global warming - This upsets the balance of the carbon cycle - The ozone layer helps protect us from harmful rays from the sun - It is getting damaged from air pollution such as methane gas from livestock and CFCs from spray cans - Acid rain is created when gasses such as sulfur dioxide get high into the atmosphere - The wind can blow these gasses for miles and then they get washed out of the air when it rains - This rain is called acid rain and can damage forests and kill fish.

Ans: One type of air pollution is the addition of carbon dioxide gas into the air