What do mountain pine beetles do? Mountain pine beetle is a naturally occurring insect of the Rocky Mountain Ecosystem. These small cylindrical beetles colonize and kill mature pine trees by boring through the bark and mining the layer between the bark and the wood of the tree. This can result in the removal of mature […]

How can crocodiles use ocean currents to travel long distances? Saltwater crocodiles enjoy catching a wave and can travel hundreds of kilometres by “surfing” on ocean currents, a study suggests. Australian researchers used sonar sensors and satellite transmitters to monitor 20 reptiles’ movements. How do crocodiles migrate? Saltwater crocodiles are by nature violent and territorial, […]

How much of the world was covered by ice in the ice age? 30% What happened at the end of the most recent Ice Age answers com? What happened at the end of the ice age? The glaciers melted, oceans rose, and fishing improved. Can global warming cause fires? There isn’t a direct relationship between […]

Is Japan the second largest economy? The economy of Japan is a highly developed free-market economy. It is the third-largest in the world by nominal GDP and the fourth-largest by purchasing power parity (PPP), and is the world’s second largest developed economy. Japan is a member of the G7 and G20. What are the 10 […]

What are the positives of renewable energy? Benefits of Renewable Energy Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels. Creating economic development and jobs in manufacturing, installation, and more. Is renewable energy better than non-renewable? Renewables […]

Why do some countries have higher life expectancy than others? Generally, wealthier countries have a higher average life expectancy than poorer countries [2,3,4], which can be argued to be achieved through higher standards of living, more effective health systems, and more resources invested in determinants of health (e.g. sanitation, housing, education) [5]. Why does life […]

What two states share the longest border? Find the state that shares the longest land border with any state that has been clicked. The longest border between two US states is Oklahoma-Texas, but neither of these has been clicked. Second is California-Nevada, and California is clicked so that makes Nevada the choice. What states does […]

How long does it take to travel 20 km? At a constant speed of 60 mph a vehicle travels 1 mile per minute. So 20 km at 60 mph will take 12 minutes and 48 seconds. How many hours is 80 km? The answer is 0.000305. If a man is driving at a rate of […]

Where does the US import from? The top five suppliers of U.S. goods imports in 2019 were: China ($452 billion), Mexico ($358 billion), Canada ($319 billion), Japan ($144 billion), and Germany ($128 billion). U.S. goods imports from the European Union 27 were $515 billion. The United States is the largest services exporter in the world. […]

What is mantle convection? Mantle convection is the very slow creeping motion of Earth’s solid silicate mantle caused by convection currents carrying heat from the interior to the planet’s surface. This subducted material sinks through the Earth’s interior. What will happen to the convection current in the mantle if Earth interior eventually cools down? If […]