Answer:
The Sun produces a light by nuclear reaction called fusion.
Explanation:
Atoms of hydrogen combine to form helium, they produce vast amounts of heat and light.
Why do melting ice caps make Earth warmer?
The correct answer is C. Albedo decreases.
When the albedo is lower, more radiation from the Sun gets absorbed by the planet resulting in rise of temperature. When the snow covered area warms up and melts, the albedo goes down and more sunlight is absorbed in that area and the temperatures increase.
Answer:
Explanation:
It's a normal part of nature, and one of many ecological factors that help keep the hundreds of thousands of living plants. It also keeps animals in balance with one another.
Second-degree burn is the type of burn represented by the formation of the blisters.
Second-degree burn is a burn that affects the epidermis and the superficial part of the dermis layer (skin). Second-degree burn may be caused by sunburn, chemicals, scald injuries, flames or electricity. The burn site may appear blistered, red, wet and shiny, and may be swollen and painful.
Answer:
A feedback loop is a biological occurrence where the output of a system amplifies the system (positive feedback) or inhibits the system (negative feedback).
Explanation:
Example, during blood clotting, a cascade of enzymic proteins acitvates each other, leading to the formation of fibrin clot that prevents further blood loss.
