Answer:
A. It helped sailors steer around rocky coasts.
Explanation:
An astrolabe is an elaborate inclinometer. An inclinometer is an instrument used for angles of slope, elevation, or depression with respect to gravity's direction. It is also used as a tilt sensor, tilt indicator, slope meter, slope gauge.
<em>A. It helped sailors steer around rocky coasts.</em>
Rocky coasts are dangerous. In order to maneuver them, the sailors used an astrolabe. This helped them to understand the angles of slopes, elevation, depression of several rocks on sea.
<em>B. It aided navigators in predicting the weather.</em>
An astrolabe cannot predict the weather.
<em>C. It allowed sailors to know their north-south location.</em>
A compass is used for this purpose.
<em>D. It kept crews from getting sick.</em>
An astrolabe is not a medicinal equipment.
This is an example of Positive reinforcement.
Positive reinforcement is the addition of a reinforcing stimulus (giving the dog a treat) following a behavior (rolling over), that makes it more likely that the behavior occurs again.
Answer:
blue
Explanation:
obviously because sun is shining bright
One way for each farm to change its farming practices to avoid polluting the river with nitrates is through reducing the use of artificial fertilizers by using biofertilizers.
<h3 /><h3>What are biofertilizers?</h3>
They are organic fertilizers from materials easily found within a farm, such as manure compost, mineral salts and animal waste, which help to protect the soil, being a replenisher of soil organic matter and an advocate of agriculture.
Its benefits are directly linked to sustainability, since, unlike artificial fertilizers, biofertilizers do not contain nitrites, which are capable of generating pollution and ecological imbalance in rivers.
Therefore, biofertilizers are a relevant option for promoting sustainability, and such information should be more widespread in agribusiness, to promote practices that help to promote environmental responsibility and maintain the quality of life of current and future generations.
Find out more about biofertilizers here:
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<span>The geologic time scale is divided based on the major changes in the earth’s surface and climate, and the other thing that divides them is the extinction of species. The appearance and disappearance of fossils also help influence this division.</span>
