Thunderstorm- a storm with lightning or thunder, and usually produced by cumulonimbus clouds and it also produces a lot of strong winds with heavy rains or hail
Earthquake- a sudden shake or trembling of the ground, a<span>n </span>earthquake<span> is what happens when two blocks of the earth suddenly slip past one another
Volcano- openings in the earth's that creates when molten material </span><span>under the crust is propelled upward though the surface
Tsunami- Like a flood or tidal waves which is caused by displacement of large volume of water.
Flood- Overflow of water that covers land
Drought- when there's less precipitation such as little rain, drought is also water shortage, sometimes occurs on wet land and becomes dry
Bush fire- wildfire that usually happens in Australia's bush.
Avalanche- rapid flow of snow down a hill or mountain
Blizzard- a storm with blowing snow and winds that can reach up to 35 mph and can last for more/less than 3 hour</span>
Answer:
The action and reaction forces are reciprocal (opposite) on an object. The swimmer pushes against the water (action force), the water pushes back on the swimmer (reaction force) and pushes her forward. The ball puts a force on the wall (action force), and the wall puts a force on the ball (reaction force) so the ball bounces off.
Explanation:
Pretty sure the answer is B. Hunting, as this will dwindle the population of elk.
Bottom-producers (plants) 1000
Primary consumers (herbivores) 100
Secondary consumers 10
Tertiary consumers (top) 1
Answer:
A) The role of bacteria fixing nitrogen is very important because it fixes atmospheric nitrogen in the roots of plants. For example, Azotobacter is a bacteria which lives in the root of the higher plants. The bacteria fixes nitrogen for the plant and the plant gives habitat and food to the bacteria and hence, both get benefit.
B) Nitrifying bacteria are the bacteria which converts ammonia into nitrates. Examples are Nitrosomonas and Nitrobacter.
C) Denitrifying bacteria is a type of bacteria which converts nitrates into atmospheric nitrogen. Examples are Serratia and Pseudomonas.
