Answer:
A fall-arrest system should be worn while climbing a tree or any tall structure. This will enable the person to have a thing to break or slow his fall if he loses his grasp from the trunk of the tree.
Answer:
Climate change is partly the result of an increased concentration of greenhouse gases, especially carbon dioxide
Explanation:
Increased concentration of carbon dioxide, leads to change in temperature because it traps the heat in the Earth's atmosphere. For greenhouse, carbon dioxide is the main gas. The other green house gases are water vapor, carbon dioxide, methane, nitrous oxide and ozone. Absence of the greenhouse leads to the average temperature of about -18 degree Celsius. But when these gases are present the average temperature is about 15 degree Celsius.
A salamander is cold blooded because it is a reptile.
Free-Air Carbon dioxide Enrichment (FACE) is a method used by ecologists and plant biologists that raises the concentration of CO. 2 in a specified area and allows the response of plant growth to be measured. Experiments using FACE are required because most studies looking at the effect of elevated CO.
